이미지 경로를 올려보세요.

HTML 코드로 확인해봤는데
cheditor4 경로가아닌 이미지 링크 주소가 뜨는데...
다른 스킨이나 cheditor5로 바꿔 적용해보세요.

기본 스킨 write.skin.php에 cheditor로 검색해보면
cheditor 적용 부분이 자세히 나와있습니다.
cheditor로 바꿔서 테스트 해보세요.
에디트 문제인지?  아니면 스킨에 문제인지 부터 확인이
되어야할것 같네요.

원본 따로 저장하시고 아래것 복사해보세요.

<?
if (!defined("_GNUBOARD_")) exit; // 개별 페이지 접근 불가
include_once("$board_skin_path/lib/skin.lib.php");

// 한 사람당 글 한개만 등록가능
if ($w == "" && $board[bo_only_one]) {
    if ($is_member)
$sql = "select * from $write_table where wr_is_comment = 0 and mb_id = '$member[mb_id]'";
    else
$sql = "select * from $write_table where wr_is_comment = 0 and wr_ip = '$_SERVER[REMOTE_ADDR]'";
    $row = sql_fetch($sql);
    if ($row)
alert("이 게시판은 한 사람당 글 한개만 등록 가능합니다.");
}

if ($w == "" && $board[bo_write_days]) {
//가입후 n일후에 글등록 가능
$nowrite_time = date("Y-m-d", $g4[server_time] - ($board[bo_nowrite_days] * 86400));
$write_time = $member[mb_datetime];
if ($write_time >= $nowrite_time ) {
  alert("이게시판은 가입후 $board[bo_nowrite_days]일이 지나야 글을 작성할수 있습니다.","./board.php?bo_table=$bo_table");
}
}
// TEXT 로 작성된 글 에디터로 수정할 때 한줄로 나오는 문제해결
//$html = 0;
//if (strstr($write['wr_option'], "html1")) $html = 1;
//if (strstr($write['wr_option'], "html2")) $html = 2;

//if ($html == 0 && $is_dhtml_editor) {
//    $content = nl2br($content);
//}

// 일별 글쓰기 제한 - a일동안 b회 이상 글쓰기를 금지합니다. a,b|c,d 와 같이 입력해주세요
$bo_day_nowrite = $board[bo_day_nowrite];

if ($w=="" && !$is_admin && $bo_day_nowrite) {

    // 게시판 테이블 전체이름
    $tmp_write_table = $g4['write_prefix'] . $bo_table;

    // 사용자 아이디
    $mb_id = $member[mb_id];

    // $bo_day_nowrite를 explode 합니다.
    $day_array = explode("|", trim($bo_day_nowrite));
    foreach ($day_array as $key => $val) {
        $res = explode(",", trim($val));
        if ($res) {
            $day2_days[$res[0]] = $res[0];
            $day2_count[$res[1]] = $res[1];
        }
    }

    // 배열을 정렬하기 (days 값 기준으로)
    array_multisort($day2_days, $day2_count);

    // 입력된 배열의 갯수
    $day_array_count = count($day2_count);

    // 최대날짜
    $max_days = $day2_days[$day_array_count-1];

    // sort되면서 흐트러진 key 값을 다시 지정해주기
    for ($i=0; $i < $day_array_count; $i++) {
        $day2_days2[$day2_days[$i]] = $day2_days[$i];
        $day2_count2[$day2_days[$i]] = $day2_count[$i];
    }

    // 글쓰기 제한에 걸리는지 확인해 봅니다.
    $sql = " SELECT to_days(now())-to_days(wr_datetime) AS t_diff, count( * ) AS cnt, date_format( wr_datetime, '%Y-%m-%d' )
              FROM `$tmp_write_table`
              WHERE mb_id = '$mb_id'
                AND (to_days(now())-to_days(wr_datetime)-$max_days) < 0
              GROUP BY t_diff
          ";
    $result = sql_query($sql);

    if ($result && mysql_num_rows($result)) {
        // 결과값을 배열에 넣습니다
        for($i=0; $row = sql_fetch_array($result); $i++) {
            $day_result[$row[t_diff]] = $row[cnt];
        }
   
        // 조건을 충족하는지 check
        $sum = 0;
        for($i=0; $i <= $max_days; $i++) {
            $sum += $day_result[$i];
            if ($day2_days2[$i] && $day2_count2[$i] && $sum >= $day2_count2[$i]) {
                alert("{$i}일에 $day2_count2[$i]개 이상의 글을 작성할 수 없습니다. 운영자에게 문의 하시기 바랍니다.");
            }
        }
    }
}

$give_point = explode(",", $board[bo_3]);

if ($is_dhtml_editor) {
    include_once("$g4[path]/lib/cheditor4.lib.php");
    echo "<script src='$g4[cheditor4_path]/cheditor.js'></script>";
    echo cheditor1('wr_content', '100%', '250');
}
?>
<link rel="stylesheet" href="<?=$board_skin_path?>/basic.style.css" type="text/css">
<style type="text/css">
.write_head { height:30px; text-align:center; color:#8492A0; }
.field { border:1px solid #ccc; }
</style>
<div style="height:14px; line-height:1px; font-size:1px;">&nbsp;</div>
<script language="javascript">
// 글자수 제한
var char_min = parseInt(<?=$write_min?>); // 최소
var char_max = parseInt(<?=$write_max?>); // 최대
</script>

<form name="fwrite" method="post" onsubmit="return fwrite_submit(this);" enctype="multipart/form-data" style="margin:0px;">
<input type=hidden name=null>
<input type=hidden name=w        value="<?=$w?>">
<input type=hidden name=bo_table value="<?=$bo_table?>">
<input type=hidden name=wr_id    value="<?=$wr_id?>">
<input type=hidden name=sca      value="<?=$sca?>">
<input type=hidden name=sfl      value="<?=$sfl?>">
<input type=hidden name=stx      value="<?=$stx?>">
<input type=hidden name=spt      value="<?=$spt?>">
<input type=hidden name=sst      value="<?=$sst?>">
<input type=hidden name=sod      value="<?=$sod?>">
<input type=hidden name=page    value="<?=$page?>">
<input type=hidden name=mark      value="<?=$mark?>">

<table width="<?=$width?>" align=center cellpadding=0 cellspacing=0><tr><td>


<div style="border:1px solid #ddd; height:34px; background:url(<?=$board_skin_path?>/img/title_bg.gif) repeat-x;">
<div style="font-weight:normal; font-size:12px; color:#ffffff; margin:10px 0 0 10px;"><?=$title_msg?></div>
</div>
<div style="height:3px; background:url(<?=$board_skin_path?>/img/title_shadow.gif) repeat-x; line-height:1px; font-size:1px;"></div>


<table width="100%" border="0" cellspacing="0" cellpadding="0">
<colgroup width=90>
<colgroup width=''>
<tr><td colspan="2"  repeat-x; height:3px;"></td></tr>
<? if ($is_name) { ?>
<tr>
    <td class=write_head>이 름</td>
    <td><input class='ed' maxlength=20 size=15 name=wr_name itemname="이름" required value="<?=$name?>"></td></tr>
<tr><td colspan=2 height=1 bgcolor=#e7e7e7></td></tr>
<? } ?>

<? if ($is_password) { ?>
<tr>
    <td class=write_head>패스워드</td>
    <td><input class='ed' type=password maxlength=20 size=15 name=wr_password itemname="패스워드" <?=$password_required?>></td></tr>
<tr><td colspan=2 height=1 bgcolor=#e7e7e7></td></tr>
<? } ?>

<? if ($is_email) { ?>
<tr>
    <td class=write_head>이메일</td>
    <td><input class='ed' maxlength=100 size=50 name=wr_email email itemname="이메일" value="<?=$email?>"></td></tr>
<tr><td colspan=2 height=1 bgcolor=#e7e7e7></td></tr>
<? } ?>

<? if ($is_homepage) { ?>
<tr>
    <td class=write_head>홈페이지</td>
    <td><input class='ed' size=50 name=wr_homepage itemname="홈페이지" value="<?=$homepage?>"></td></tr>
<tr><td colspan=2 height=1 bgcolor=#e7e7e7></td></tr>
<? } ?>

<?
$option = "";
$option_hidden = "";
if ($is_notice || $is_html || $is_secret || $is_mail) {
    $option = "";
    if ($is_notice) {
        $option .= "<input type=checkbox name=notice value='1' $notice_checked>공지&nbsp;";
    }

    if ($is_html) {
        if ($is_dhtml_editor) {
            $option_hidden .= "<input type=hidden value='html1' name='html'>";
        } else {
            $option .= "<input onclick='html_auto_br(this);' type=checkbox value='$html_value' name='html' $html_checked><span class=w_title>html</span>&nbsp;";
        }
    }

    if ($is_secret) {
        if ($is_admin || $is_secret==1) {
            $option .= "<input type=checkbox value='secret' name='secret' $secret_checked><span class=w_title>비밀글</span>&nbsp;";
        } else {
            $option_hidden .= "<input type=hidden value='secret' name='secret'>";
        }
    }
   
    if ($is_mail) {
        $option .= "<input type=checkbox value='mail' name='mail' $recv_email_checked>답변메일받기&nbsp;";
    }
}

echo $option_hidden;
if ($option) {
?>
<tr>
    <td class=write_head>옵 션</td>
    <td><?=$option?></td></tr>
<tr><td colspan=2 height=1 bgcolor=#e7e7e7></td></tr>
<? } ?>

<? if ($is_category) { ?>
<tr>
    <td class=write_head>분 류</td>
    <td><select name=ca_name required itemname="분류"><option value="">선택하세요<?=$category_option?></select></td></tr>
<tr><td colspan=2 height=1 bgcolor=#e7e7e7></td></tr>
<? } ?>

<tr>
    <td class=write_head>제 목</td>
    <td><input class='ed' style="width:100%;" name=wr_subject id="wr_subject" itemname="제목" required value="<?=$subject?>"></td></tr>
<tr><td colspan=2 height=1 bgcolor=#e7e7e7></td></tr>
<? if ($board[bo_qna] == '1') { ?>
<tr>
    <td class=write_head>답변 마감일</td>
    <td><a href="javascript:win_calendar('wr_4', document.getElementById('wr_4').value, '');"><input class="field" style="width:60;" name="wr_4" id="wr_4" readonly itemname="답변 마감일" required value="<?=$write[wr_4]?>"> <img src="<?=$board_skin_path?>/img/calendar.gif" border="0" align="absmiddle" title="날짜를 선택하세요" /></a></td></tr>
<tr><td colspan=2 height=1 bgcolor=#e7e7e7></td></tr>

<tr>
    <td class=write_head>선물 포인트</td>
    <td>

<select name="wr_3" itemname="선물 포인트" required>
<option value=''>: 선택 :
<? for ($i=0; $i<count($give_point); $i++) { ?>
<option value='<?=(int)$give_point[$i]?>' <? if ($write[wr_3] == (int)$give_point[$i]) echo "selected"; ?>><?=(int)$give_point[$i]?>
<? } ?>
</select> 포인트 (현재 회원님의 포인트 <?=number_format($member[mb_point])?>점)

</td></tr>
<tr><td colspan=2 height=1 bgcolor=#e7e7e7></td></tr>
<? } ?>
<tr>
    <td class=write_head style='padding-left:20px;'>내용</td>
    <td style='padding:5 0 5 0;'>
        <? if ($is_dhtml_editor) { ?>
        <table width=100% cellpadding=0 cellspacing=0>
        <tr>
            <td width=50% align=left valign=bottom>
                <span style="cursor: pointer;" onclick="textarea_decrease('wr_content', 10);"><img src="<?=$board_skin_path?>/img/up.gif"></span>
                <span style="cursor: pointer;" onclick="textarea_original('wr_content', 10);"><img src="<?=$board_skin_path?>/img/start.gif"></span>
                <span style="cursor: pointer;" onclick="textarea_increase('wr_content', 10);"><img src="<?=$board_skin_path?>/img/down.gif"></span></td>
            <td width=50% align=right><? if ($write_min || $write_max) { ?><span id=char_count></span>글자<?}?></td>
        </tr>
        </table>
        <textarea id="wr_content" name="wr_content" class=tx style='width:100%; word-break:break-all;' rows=15 itemname="내용" required
        <? if ($is_dhtml_editor) echo ' geditor '; ?>
        <? if ($write_min || $write_max) { ?>onkeyup="check_byte('wr_content', 'char_count');"<?}?>><?=$content?></textarea>
        <? if ($write_min || $write_max) { ?><script language="javascript"> check_byte('wr_content', 'char_count'); </script><?}?>
        <? } ?>
    </td>
</tr>
<tr><td colspan=2 height=1 bgcolor=#dddddd></td></tr>
<? if ($board[bo_use_related]) { ?>
<tr>
    <td class=write_head>· 관련글 키워드</td>
    <td height=50>
        <input type="text" size=50 name='wr_related' itemname='관련글 키워드' value='<?=$write[wr_related]?>'> <br/>
        키워드를 , 컴마로 구분하여 입력해주세요. (예 : 아파치, JS빌더, 그누보드)
    </td>
</tr>
<tr><td colspan=2 height=1 bgcolor=#e7e7e7></td></tr>
<? } ?>

<? if ($board[bo_ccl]) { ?>
<tr>
    <td class=write_head>· CCL</td>
    <td class=js_write_content>
        <select name="wr_ccl_by"><option value="">사용안함</option><option value="by">사용</option></select>
        영리목적 : <select name="wr_ccl_nc"><option value="nc">사용불가</option><option value="">사용가능</option></select>
        변경 : <select name="wr_ccl_nd"><option value="nd">변경불가</option><option value="sa">동일조건변경가능</option><option value="">변경가능</option></select>
        <a href="http://www.creativecommons.or.kr/info/about" target=_blank>CCL이란?</a>
        <? if ($w == "u") {?>
        <script type="text/javascript">
        document.fwrite.wr_ccl_by.value = "<?=$write[wr_ccl][by]?>";
        document.fwrite.wr_ccl_nc.value = "<?=$write[wr_ccl][nc]?>";
        document.fwrite.wr_ccl_nd.value = "<?=$write[wr_ccl][nd]?>";
        </script>
        <? } ?>
    </td>
</tr>
<tr><td colspan=2 height=1 bgcolor=#e7e7e7></td></tr>
<? } ?>

<? if ($is_link) { ?>
<? for ($i=1; $i<=$g4[link_count]; $i++) { ?>
<tr>
    <td class=write_head>링크 #<?=$i?></td>
    <td><input type='text' class='ed' size=50 name='wr_link<?=$i?>' itemname='링크 #<?=$i?>' value='<?=$write["wr_link{$i}"]?>'></td>
</tr>
<tr><td colspan=2 height=1 bgcolor=#e7e7e7></td></tr>
<? } ?>
 
<tr>
    <td class=write_head>외부 HTML 태그</td>
      <td style='padding:5 0 5 0;'><textarea class=ed style="width:510;" id='wr_9' name='wr_9' itemname='링크' rows=5><?=$write['wr_9']?></textarea>
  </td>
</tr>

<? } ?>
<? if ($is_file) { ?>
<tr>
    <td class=write_head>
        <table cellpadding=0 cellspacing=0>
        <tr>
            <td class=write_head style="padding-top:10px; line-height:20px;">
                파일첨부<br>
                <span onclick="add_file();" style="cursor:pointer;"><img src="<?=$board_skin_path?>/img/btn_file_add.gif"></span>
                <span onclick="del_file();" style="cursor:pointer;"><img src="<?=$board_skin_path?>/img/btn_file_minus.gif"></span>
            </td>
        </tr>
        </table>
    </td>
    <td style='padding:5 0 5 0;'><table id="variableFiles" cellpadding=0 cellspacing=0></table><?// print_r2($file); ?>
        <script language="JavaScript">
        var flen = 0;
        function add_file(delete_code)
        {
            var upload_count = <?=(int)$board[bo_upload_count]?>;
            if (upload_count && flen >= upload_count)
            {
                alert("이 게시판은 "+upload_count+"개 까지만 파일 업로드가 가능합니다.");
                return;
            }

            var objTbl;
            var objRow;
            var objCell;
            if (document.getElementById)
                objTbl = document.getElementById("variableFiles");
            else
                objTbl = document.all["variableFiles"];

            objRow = objTbl.insertRow(objTbl.rows.length);
            objCell = objRow.insertCell(0);

            objCell.innerHTML = "<input type='file' class='ed' name='bf_file[]' title='파일 용량 <?=$upload_max_filesize?> 이하만 업로드 가능'>";
            if (delete_code)
                objCell.innerHTML += delete_code;
            else
            {
                <? if ($is_file_content) { ?>
                objCell.innerHTML += "<br><input type='text' class='ed' size=50 name='bf_content[]' title='업로드 이미지 파일에 해당 되는 내용을 입력하세요.'>";
                <? } ?>
                ;
            }

            flen++;
        }

        <?=$file_script; //수정시에 필요한 스크립트?>

        function del_file()
        {
            // file_length 이하로는 필드가 삭제되지 않아야 합니다.
            var file_length = <?=(int)$file_length?>;
            var objTbl = document.getElementById("variableFiles");
            if (objTbl.rows.length - 1 > file_length)
            {
                objTbl.deleteRow(objTbl.rows.length - 1);
                flen--;
            }
        }
        </script><? if ($board[bo_watermark]) { ?><input type="checkbox" name="mark"  value="1"/> 이미지 워터마킹<? } ?><? if ($board[bo_ucc]==1) { ?>캡쳐 이미지 1개만 업로드 하세요.<? } ?></td>
</tr>
<tr><td colspan=2 height=1 bgcolor=#e7e7e7></td></tr>
<? } ?>

<? if ($is_trackback) { ?>
<tr>
    <td class=write_head>트랙백주소</td>
    <td><input class='ed' size=50 name=wr_trackback itemname="트랙백" value="<?=$trackback?>">
        <? if ($w=="u") { ?><input type=checkbox name="re_trackback" value="1">핑 보냄<? } ?></td>
</tr>
<tr><td colspan=2 height=1 bgcolor=#e7e7e7></td></tr>
<? } ?>
<? if ($board[bo_down_point_chk]) { ?>
<tr>
    <td style='padding-left:20px; height:30px;'>· 다운포인트</td>
    <td><INPUT class=ed size=10 name=wr_2 itemname="다운포인트" value="<?=$write[wr_2]?>"></td>
</tr>
<tr><td colspan=2 height=1 bgcolor=#e7e7e7></td></tr>
<? } ?>
<? if ($is_guest) { ?>
<tr>
    <td class=write_head><img id='kcaptcha_image'/></td>
    <td><input class='ed' type=input size=10 name=wr_key itemname="자동등록방지" required>&nbsp;&nbsp;왼쪽의 글자를 입력하세요.</td>
</tr>
<tr><td colspan=2 height=1 bgcolor=#e7e7e7></td></tr>
<? } ?>

</table>
<table width="100%" border="0" cellspacing="0" cellpadding="0">
<tr>
    <td width="100%" align="center" valign="top" style="padding-top:30px;">
        <input type=image id="btn_submit" src="<?=$board_skin_path?>/img/btn_write.gif" border=0 accesskey='s'>&nbsp;
        <a href="./board.php?bo_table=<?=$bo_table?>"><img id="btn_list" src="<?=$board_skin_path?>/img/btn_list.gif" border=0></a></td>
</tr>
</table>
</td></tr></table>
</form>

<script type="text/javascript" src="<?="$g4[path]/js/jquery.kcaptcha.js"?>"></script>
<script type="text/javascript">
var f = document.fwrite;
var mb_point = "<?=$member[mb_point]?>";
var write_point = "<?=$board[bo_4]?>";
var wr_id = "<?=$write[wr_id]?>";

function Get_Point(obj) {
f.need_point.value = number_format(String(parseInt(obj.value) * parseInt(write_point)));
result_mb_point = parseInt(mb_point) - (parseInt(obj.value) * parseInt(write_point));

if (result_mb_point >= 0)
success_check = "(<span style='color:blue; font-weight:bold; '>등록가능</span>) 등록 후 " + String(parseFloat(result_mb_point)) + " p";
else
success_check = "(<span style='color:red; font-weight:bold; '>등록불가능</span>) " + String(parseFloat(result_mb_point)) + " 포인트가 부족함니다";

if (obj.value == 0) {
document.getElementById("sum_td").innerHTML = "";
} else {

document.getElementById("sum_td").innerHTML =
number_format(String(obj.value)) + " 일 x " +
number_format(String(write_point)) + " p = " +
f.need_point.value + " p " + success_check;
}
}

<?
// 관리자라면 분류 선택에 '공지' 옵션을 추가함
if ($is_admin)
{
    echo "
    if (typeof(document.fwrite.ca_name) != 'undefined')
    {
        document.fwrite.ca_name.options.length += 1;
        document.fwrite.ca_name.options[document.fwrite.ca_name.options.length-1].value = '공지';
        document.fwrite.ca_name.options[document.fwrite.ca_name.options.length-1].text = '공지';
    }";
}
?>

with (document.fwrite)
{
    if (typeof(wr_name) != "undefined")
        wr_name.focus();
    else if (typeof(wr_subject) != "undefined")
        wr_subject.focus();
    else if (typeof(wr_content) != "undefined")
        wr_content.focus();

    if (typeof(ca_name) != "undefined")
        if (w.value == "u")
            ca_name.value = "<?=$write[ca_name]?>";
}

function html_auto_br(obj)
{
    if (obj.checked) {
        result = confirm("자동 줄바꿈을 하시겠습니까?\n\n자동 줄바꿈은 게시물 내용중 줄바뀐 곳을<br>태그로 변환하는 기능입니다.");
        if (result)
            obj.value = "html2";
        else
            obj.value = "html1";
    }
    else
        obj.value = "";
}

function fwrite_submit(f)
{
    /*
    var s = "";
    if (s = word_filter_check(f.wr_subject.value)) {
        alert("제목에 금지단어('"+s+"')가 포함되어있습니다");
        return false;
    }

    if (s = word_filter_check(f.wr_content.value)) {
        alert("내용에 금지단어('"+s+"')가 포함되어있습니다");
        return false;
    }
    */

    if (document.getElementById('char_count')) {
        if (char_min > 0 || char_max > 0) {
            var cnt = parseInt(document.getElementById('char_count').innerHTML);
            if (char_min > 0 && char_min > cnt) {
                alert("내용은 "+char_min+"글자 이상 쓰셔야 합니다.");
                return false;
            }
            else if (char_max > 0 && char_max < cnt) {
                alert("내용은 "+char_max+"글자 이하로 쓰셔야 합니다.");
                return false;
            }
        }
    }

    if (document.getElementById('tx_wr_content')) {
        if (!ed_wr_content.outputBodyText()) {
            alert('내용을 입력하십시오.');
            ed_wr_content.returnFalse();
            return false;
        }
    }

    var geditor_status = document.getElementById("geditor_wr_content_geditor_status");
    if (geditor_status != null) {
        if (geditor_status.value == "TEXT") {
            f.html.value = "html2";
        }
        else if (geditor_status.value == "WYSIWYG") {
            f.html.value = "html1";
        }
    }

    var subject = "";
    var content = "";
    $.ajax({
        url: "<?=$board_skin_path?>/ajax.filter.php",
        type: "POST",
        data: {
            "subject": f.wr_subject.value,
            "content": f.wr_content.value
        },
        dataType: "json",
        async: false,
        cache: false,
        success: function(data, textStatus) {
            subject = data.subject;
            content = data.content;
        }
    });

    if (subject) {
        alert("제목에 금지단어('"+subject+"')가 포함되어있습니다");
        f.wr_subject.focus();
        return false;
    }

    if (content) {
        alert("내용에 금지단어('"+content+"')가 포함되어있습니다");
        if (typeof(ed_wr_content) != "undefined")
            ed_wr_content.returnFalse();
        else
            f.wr_content.focus();
        return false;
    }

    if (!check_kcaptcha(f.wr_key)) {
        return false;
    }

    document.getElementById('btn_submit').disabled = true;
    document.getElementById('btn_list').disabled = true;

    <?
    if ($g4[https_url])
        echo "f.action = '$g4[https_url]/$g4[bbs]/write_update.php';";
    else
        echo "f.action = './write_update.php';";
    ?>
   
    return true;
}
</script>

<script type="text/javascript" src="<?="$g4[path]/js/board.js"?>"></script>

<? if ($is_dhtml_editor) {?>
<script language="JavaScript" src="<?=$g4[path]?>/geditor/geditor.js"></script>
<? if (strstr($write[wr_option], "html2")) { ?>
<script type="text/javascript">
geditor_wr_content.mode_change();
</script>
<?}?>

<script type="text/javascript"> window.onload=function() { drawFont(); } </script>