Hier hast du den Teil inna war.php, der für das Logout zuständig ist:
if ($GPC['action'] == "logout")
{
SetVWarCookie("vwarid", "", 1);
SetVWarCookie("vwarpassword", "", 1);
SetVWarCookie("vwarlanguage", "", 1);
// IIS needs this redirection...
header("Cache-Control: no-cache, must-revalidate");
header("Pragma: no-cache");
$vwartpl->cache ( "message_confirmation" );
include ( $vwar_root . "includes/get_header.php" );
$redirecturl = "war.php";
eval ("$vwartpl->output("" . $vwartpl->get("message_confirmation") . "");");
include ( $vwar_root . "includes/get_footer.php" );