[Pollo]

Here's a guess:

Change:
$cantpostforumid=Z;

if ($cantpostforumid==$forumid AND ($bbuserinfo[usergroupid]!=6 OR $bbuserinfo[usergroupid]!=5 OR $bbuserinfo[usergroupid]!=7))
{

to:

## not needed now $cantpostforumid=Z;

if (($forumid == 19) OR ($forumid == 21) OR ($forumid == 23) OR ($forumid == 24) OR ($forumid == 27) AND ($bbuserinfo[usergroupid]!=6 OR $bbuserinfo[usergroupid]!=5 OR $bbuserinfo[usergroupid]!=7))
{

-would that work?