me trying to fix yours
[sql]$threads=$DB_site->query("SELECT * FROM thread WHERE open='1' AND open<>10 $iforumperms ORDER BY lastpost DESC LIMIT $maxthreads" AND NOT IN(24)");[/sql]
something i done earlier integrated
[sql]$threads = $DB_site->query("SELECT replycount,title,threadid,lastpost,postusername,la stposter,views FROM thread WHERE forumid NOT IN (XX,XX) AND $forumperms ORDER BY lastpost DESC LIMIT $maxthreads");
[/sql]try that