[kh99]

OK, I tried to simplify the code from index.php since you only want the counts, but I'm not sure I got it all right (it does say 1 registered and 0 guests when I try it on my test site, so it looks good). Anyway, create a new plugin using hook location misc_start and this code:

if ($_REQUEST['do'] == 'vbusers')
{
   $datecut = TIMENOW - $vbulletin->options['cookietimeout'];
   $numberregistered = 0;
   $numberguest = 0;

   $forumusers = $vbulletin->db->query_read_slave("
	SELECT userid FROM " . TABLE_PREFIX . "session AS session
		WHERE session.lastactivity > $datecut
	");
   while ($loggedin = $vbulletin->db->fetch_array($forumusers))
   {
      $userid = $loggedin['userid'];
      if (!$userid)
         $numberguest++;
      else 
         $numberregistered++;
   }
   unset($loggedin);
   $vbulletin->db->free_result($forumusers);

   echo "var number_registered = $numberregistered;\n";
   echo "var number_guests = $numberguest;\n";
   exit;
}

Then in the page where you want to display it, put something like this:

<script src="http://my-site.com/forums/misc.php?do=vbusers" type="text/javascript"></script>
<script type="text/javascript">
<!--
document.writeln(number_registered + " registered users<br />");
document.writeln(number_guests + " guests<br />");
document.writeln((number_guests + number_registered) + " total vb user(s)<br />");
//-->
</script>

of course you need to change the url (in red) to your site, and you can change the html in the writeln lines to be whatever you want.