Ayuda con vbadvanced !! uRGENTE !!

Hola Cuando entro a archivo cmps_index.php me sale este error en la web..

Invalid forum path specified! Please edit this file and be sure to include the correct path for your $forumpath variable.

nose como se configur el cmps_index.php miren asi esta configurado mi cmps_index.php :

<?php
// ++================================================ =========================++
// || vBadvanced CMPS v2.2.1 (vB 3.6) - 44240
// || © 2003-2004 vBadvanced.com & PlurPlanet, LLC - All Rights Reserved
// || This file may not be redistributed in whole or significant part.
// || http://vbadvanced.com
// || Downloaded 11:57, Fri Nov 24th 2006
// ||
// ++ ================================================== ======================++

error_reporting(E_ALL & ~E_NOTICE);
define('NO_REGISTER_GLOBALS', 1);
define('THIS_SCRIPT', 'adv_index');
define('VBA_PORTAL', true);
define('VBA_SCRIPT', 'CMPS');

// ============================================
// Enter the full path to your forum here
// Example: /home/vbadvanced/public_html/forum
// ============================================

$forumpath = '/forum';

// ============================================
// No Further Editing Necessary!
// ============================================

if ($forumpath)
{
if (!is_dir($forumpath))
{
echo 'Invalid forum path specified! Please edit this file and be sure to include the correct path for your $forumpath variable.';
exit;
}

chdir($forumpath);
}

$phrasegroups = array();
$globaltemplates = array();
$actiontemplates = array();
$specialtemplates = array();

require_once('./includes/vba_cmps_include_template.php');
require_once('./global.php');

print_portal_output($home);

?>

y mi Direccion de mi foro es esta :

C:\AppServ\www\forum

Espero que me Ayuden a configurar y me den un Ejemplo porfavor ..Gracias de antemano...