[Xenon]

hmm, not sure if i understood right

open newreply.php find

PHP Code:

if (($bbuserinfo['userid']!=$threadinfo['postuserid'] or $bbuserinfo['userid']==0) and (!$permissions['canviewothers'] or !$permissions['canreplyothers'])) {
  show_nopermission();
} 


change it to:

PHP Code:

if (($bbuserinfo['userid']!=$threadinfo['postuserid'] or $bbuserinfo['userid']==0) and (!$permissions['canviewothers'] or !$permissions['canreplyothers'])) {
  if($threadinfo['forumid'] != xx) 
  {
    show_nopermission();
  } else {
    eval("standarderror(\"".gettemplate("error_cannotposthere")."\");");
  }
} 


then create a template error_cannotposthere with the wanted text..
and replace the xx with the special forumid