织梦DEDECMS系统首页sql调用disucuz2.5内容怎么解决?

注明：如果你安装在不同的数据库，需要在sql中指定数据库，我这边是jtb，与公司的织梦dedecms不是安装在同库中。 
调用图文帖子的方法： 
{dede:sql sql="SELECT jtb.pre_forum_threadimage.tid, jtb.pre_forum_threadimage.attachment, jtb.pre_forum_thread.tid, jtb.pre_forum_thread.fid, jtb.pre_forum_thread.subject FROM jtb.pre_forum_threadimage 
LEFT JOIN jtb.pre_forum_thread ON jtb.pre_forum_thread.tid = jtb.pre_forum_threadimage.tid 
 WHERE displayorder >=0 LIMIT 0 , 2"} 
<li><a href=http://www.dede58.com/a/zhimengjiaocheng/dedefault/"/bbs/forum.php?mod=viewthread&tid=[field:tid /]"><img src=http://www.dede58.com/a/zhimengjiaocheng/dedefault/"bbs/data/attachment/forum/[field:attachment/]" width="153px" height="100px" /></a></li> 
<li><a href=http://www.dede58.com/a/zhimengjiaocheng/dedefault/"/bbs/forum.php?mod=viewthread&tid=[field:tid /]">[field:subject function="cn_substr('@me',28)" /]</a></li> 
{/dede:sql}