Discuz伪静态Apach设置.htaccess的方法：

RewriteEngine On
# Rewrite 系统规则请勿修改
RewriteRule ^archiver/((fid|tid)-[\w\-]+\.html)$ archiver/index.php?$1
RewriteRule ^forum-([0-9]+)-([0-9]+)\.html$ forumdisplay.php?fid=$1&page=$2
RewriteRule ^thread-([0-9]+)-([0-9]+)-([0-9]+)\.html$ viewthread.php?tid=$1&extra=page\%3D$3&page=$2
RewriteRule ^space-(username|uid)-(.+)\.html$ space.php?$1=$2
RewriteRule ^tag-(.+)\.html$ tag.php?name=$1

复制这些另存为.htaccess然后上传论坛根目录即可。注间这段规则的全角和半角。