I don't know off hand if there's a better way, but if you open forumdisplay.php and look for this:
Code:
// filter out deletion notices if can't be seen
if ($forumperms & $vbulletin->bf_ugp_forumpermissions['canseedelnotice'] OR can_moderate($foruminfo['forumid']))
{
$canseedelnotice = true;
$deljoin = "LEFT JOIN " . TABLE_PREFIX . "deletionlog AS deletionlog ON(thread.threadid = deletionlog.primaryid AND deletionlog.type = 'thread')";
}
And remove
Code:
OR can_moderate($foruminfo['forumid'])
That should do it.
I suggest waiting for somebody to confirm that there's no better way to do this though before ripping out code.