<?
require($_SERVER["DOCUMENT_ROOT"]."/bitrix/modules/main/include/prolog_before.php");

$rs = $DB->Query("SELECT NEW_ID FROM b_gp_old_bb WHERE OLD_ID=".intval($_GET["id"]));
if ($ar = $rs->Fetch())
{
    header("HTTP/1.1 301 Moved Permanently");
    header("Location: /forum/forum".$ar["NEW_ID"]."/");
    exit();
}

header("HTTP/1.1 301 Moved Permanently");
header("Location: /");
exit();
?>