dm, solution:
in index.php look for...
PHP Code:
$threadsquery = $DB_site->query("SELECT threadid,forumid,title,postusername,lastposter,replycount FROM thread WHERE forumid!=$newsforum AND forumid!=$pollsforum AND visible=1 order by lastpost desc limit $numthreads");
now edit the code like this...
PHP Code:
..... WHERE forumid!=$newsforum AND forumid!=$pollsforum AND visible=1 AND forumid!=3 (<= your private forum) AND forumid!=5 etc.
just add the forumids of ur private forums...