<?php

if(defined('_GNUBOARD_') == false)
exit();
?>

<table border="0" cellspacing="0" cellpadding="0">
<tr height="26">
<td><img src="<?php echo $latest_skin_path; ?>/img/i_subject.gif" align="absmiddle"> <strong><?php echo $board['bo_subject']; ?></strong></td>
<td align="right" class="small" style="padding:7px 0 0 0;"><a href="<?php echo $g4['bbs_path']; ?>/board.php?bo_table=<?php echo $bo_table; ?>" onfocus="this.blur();" style="color:#969696;">더보기</a></td>
</tr>
<tr><td background="<?php echo $latest_skin_path; ?>/img/g_dot.gif" colspan="2"></td></tr>
<tr><td height="10" colspan="2"></td></tr>
<tr><td colspan="2">
<table border="0" cellspacing="0" cellpadding="0">
<tr>
<td valign="top">
<div style="width:<?php echo $width; ?>px; border:3px solid #EBEBEB;">
<?php for($i = 0; $i < count($list); $i++){ ?><div id="<?php echo "{$bo_table}_{$i}"; ?>" style="<?php if($i == 0) echo 'display:block;'; else echo 'display:none;'; ?>"><a href="<?php echo $list[$i]['href']; ?>" onfocus="this.blur();"><img src="<?=thumbnail("{$list[$i]['file']['0']['path']}/{$list[$i]['file']['0']['file']}", $width, $height)?>"></a></div><?php } ?>
</div>
</td>
<td width="12"></td>
<td width="" valign="top" style="padding:3px 0 0 0;">
<table border="0" cellspacing="0" cellpadding="0">
<?php for($i = 0; $i < count($list); $i++){ ?>
<tr><td height="20"><img src="<?php echo $latest_skin_path; ?>/img/i_bullet.gif" align="absmiddle"> <a href="<?php echo $list[$i]['href']; ?>" onmouseover="layer('<?php echo $bo_table; ?>', '<?php echo $i; ?>');" onfocus="this.blur();" style="color:#222222;"><?php echo str_replace('…', '..', $list[$i]['subject']) . $list[$i]['comment_cnt']; ?></a></td></tr>
<?php } ?>
</table>
</td>
</tr>
</table>
</td></tr>
</table>

기본적인 style만 나오게 하고, 썸네일 관련 부분은 싹 지운후에 적용하면 됩니다.

예제를 참조해서 수정하면 될꺼에요.
http://sir.co.kr/bbs/board.php?bo_table=g4_pi_thumb&wr_id=129

코드가 틀릴 수도 있으니까 찬찬히 보구 수정하시면 될꺼에요.