수정된 list.skin.php 입니다.

링크는 원하는 분류로 직접 걸어주세요.
<?
if (!defined("_GNUBOARD_")) exit; // 개별 페이지 접근 불가
?>
<!-- 상단 카테고리 시작 -->

<table width="<?=$width?>" border="0" cellspacing="0" cellpadding="0" align="center">
  <tr>
    <td width="110"><img src="<?=$board_skin_path?>/img/cate_list.gif" width="110" height="39"></td>
    <td  background="<?=$board_skin_path?>/img/search_bg.gif">
<table border="0" align="center" cellpadding="0" cellspacing="0">
        <tr>
                     
          <td width="490">
  <? if ($is_category) { ?>
<?
    $cnt = 1;
    $sql = " SELECT bo_category_list FROM $g4[board_table] WHERE bo_table = '$bo_table' ";
    $row = sql_fetch($sql);
    $arr = explode("|", $row[bo_category_list]); // 구분자가 | 로 되어 있음
    $str = "";
    $str .= "";

    for ($i=0; $i<count($arr); $i++)
        if (trim($arr[$i]))  {
$sql1 = " SELECT count(*) as cCount FROM $write_table WHERE ca_name = '$arr[$i]' and wr_comment >= 0 ";
    $row1 = sql_fetch($sql1);       
            $str .= " <a href='./board.php?bo_table=$bo_table&page=$page&mode=$mode&mpage=$mpage&spage=$spage&sca=$arr[$i]'><font color='blue' >";
      if ($sca == $arr[$i]) { $str .= "<img src=$board[bo_10] height=20 align=absmiddle> <b>$arr[$i]</b>"; }
else { $str .= $arr[$i]; }

if ($cnt != count($arr)) { $str .="</a>&nbsp;&nbsp;<font color='#838383'>|</font>&nbsp;&nbsp;"; }
if ($cnt == 5) { $cnt = 1; $str .= ""; }
    $cnt++;
    }
   
    $sql2 = " SELECT count(*) as cCount FROM $write_table WHERE wr_comment >= 0 ";
    $row2 = sql_fetch($sql2);
    $Total_Cat = $row2[cCount];
?>
&nbsp;&nbsp;<?=$str?>
<?}?>
</td>
        </tr>
      </table></td>
    <td width="24"><img src="<?=$board_skin_path?>/img/cate_right.gif" width="24" height="39" border=0 align=absmiddle></td>
  </tr>
</table>

<table width="500" border="0" align="center" cellpadding="0" cellspacing="0">
  <tr>
    <td height="10"></td>
  </tr>
</table>


<? $lists = array();
for ($i=0; $i<count($list); $i++) {
$lists[$i] = $list[$i];
}
?>



<table width="500" border="0" align="center" cellpadding="0" cellspacing="0">
  <tr>
    <td height="10"></td>
  </tr>
</table>


<? for ($ii=0; $ii < count($lists); $ii++) { ?>

<table width="<?=$width?>" border="0" cellspacing="0" cellpadding="5" align="center" class=box_all>
<tr height="25">
      <td bgcolor=beige  width=100>&nbsp;<nobr style='overflow:hidden; width:80;'><span >
      <?
      $date1 = substr($lists[$ii][wr_subject],0,4);
      $date2 = substr($lists[$ii][wr_subject],4,2);
      $date3 = substr($lists[$ii][wr_subject],6,2);


      ?>
      <?=$date1?>. <?=$date2?>. <?=$date3?>
      </span></nobr>
</td>
<td width=5 align=center><font color=green>:</font></td>
  <td bgcolor=beige >
<?=nl2br($lists[$ii][wr_content])?>

  <?
    $image = $lists[$ii][file][0][file]; //원본
 
    echo " <a href=\"javascript:;\" OnClick=\"popupImage('$g4[path]/data/file/$bo_table/$image')\" onFocus=\"this.blur();\" title=\"{$lists[$ii][subject]}\">";
    echo $lists[$ii][icon_file];
  ?>
 
  </td>
  <? if ($member[mb_level] == "10" || $is_admin) { ?>
  <td width=30><a href="<?=$write_href?>&w=u&wr_id=<?=$lists[$ii][wr_id]?>&page=<?=$page?>">E</a>&nbsp;
  <a href="javascript:del('./delete.php?bo_table=<?=$bo_table?>&wr_id=<?=$lists[$ii][wr_id]?>&page=<?=$page?>');">d</a></td>
<? } ?>
 
</tr>
</table>
<table><tr><td height=2></td></tr></table>
<?}?>




<br>
  <? if ($write_href) { ?>
      <a href="<?=$write_href?>"><img src="<?=$board_skin_path?>/img/btn_write.gif" hspace="2" vspace="5" border="0" align="absmiddle"></a>
      <? } ?>
  <? if ($admin_href) { ?><a href="<?=$admin_href?>"><img src="<?=$board_skin_path?>/img/btn_admin.gif" title="관리자"  border="0" align="absmiddle"></a><?}?>
 
 
  <script language="javascript">
function popupImage(imageURL){
imageHandle=open("","popupForImage","toolbar=no,location=no,status=no,manubar=no,scrollbars=no,resizable=no,width=100,height=100,top=0,left=0");
  imageHandle.document.write("<title>  </title>");
  imageHandle.document.write("<style>");
  imageHandle.document.write("*{margin:0;padding:0;border:0;}");
  imageHandle.document.write("</style>");
  imageHandle.document.write("<img src=\""+imageURL+"\" onload=\"window.resizeTo(this.width+6,this.height+55);\" onclick=\"self.close();\" style=\"cursor:hand;\" title=\"클릭하면 닫힙니다.\">");
}
</script>

날짜별 정리라는 의미가 어떤 의미인지 모릅니다.
x박스 문제는 bo_10 인가에 아이콘 주소를 넣어주면 됩니다.(소스에 있음)