system/core/index/index.php find
require(SED_ROOT . '/system/core/index/index.inc.php'); // delete
add below
switch($m)
{
default:
if ($cfg['disable_page'])
{
define('SED_FORUMS', TRUE);
$location = 'Forums';
$z = 'forums';
require(SED_ROOT . '/system/core/forums/forums.inc.php');
}
else
{
require(SED_ROOT . '/system/core/index/index.inc.php');
}
break;
}