到你目前在使用的模板中寻找 discuz.htm
找到这一段代码:
代码如下：

<td width="$cat[forumcolwidth]" class="altbg2" onMouseover="this.className='altbg1'" onMouseout="this.className='altbg2'"> 
                                 <a href="forumdisplay.php?fid=$forum[fid]"><span class="bold">$forum[name]</span></a><br> 
                                 <span class="smalltxt"><div style="float:left;width: 33%; padding-top: 6px;">{lang forum_threads}: $forum[threads]</div><div style="float:left;width: 33%; padding-top: 6px;">{lang forum_posts}: $forum[posts]</div><div style="float:left;width: 33%; padding-top: 6px;">{lang forum_todayposts}: $forum[todayposts]</div></span> 
                                 </td> 

修改为: 

代码如下：

<td class="altbg1">$forum[folder]</td> 
                     <td width="$cat[forumcolwidth]" onMouseover="this.className='altbg1'" onMouseout="this.className='altbg2'"> 

                 $forum[icon]<a href="forumdisplay.php?fid=$forum[fid]"><span class="bold">$forum[name]</span></a><br> 
                 <span class="smalltxt">$forum[description]</span><br> 
                 <!--{if $forum['permission'] == 1}--> 
                 {lang private_forum} 
                 <!--{else}--> 
                         <!--{if is_array($forum['lastpost'])}--> 
                 <a href="redirect.php?tid=$forum[lastpost][tid]&goto=lastpost#lastpost" title="$forum[lastpost][dateline]" > 
                          {lang forum_lastpost_in}:   {$forum[lastpost][subject]}</a>   
                  {lang forum_lastpost_by}<!--{if $forum['lastpost']['author']}-->$forum['lastpost']['author']<!--{else}-->{lang anonymous}<!--{/if}--> 
                 <!--{else}--> 
                         {lang never} 
<!--{/if}--> 
<!--{/if}--></td>