external script send a new thread

[loginek]

hello
sorry 4 my bad english because it's not my native leanguage

i want write external script using php which could send a new thread

i tried

<?php
require("./global.php");

$forumid="37";
$postusername="Bot";
$userid="629";
$iconid="2";
$visible="1";
$subject="My new TOPIC";
$message="dsds test";
$allowsmilie="1";
$signature="dddsad";
$ipaddress="127.0.0.1";

$DB_site->query("INSERT INTO post (postid,threadid,title,username,userid,dateline,at tachmentid,pagetext,allowsmilie,showsignature,ipad dress,iconid,visible) VALUES (NULL,'$threadid','$subject','$postusername','$use rid','".time()."','$attachmentid','$message','$all owsmilie','$sign ature','$ipaddress','$iconid','1')");

$postid=$DB_site->insert_id();

?>

but without result ;[
any proposition how make it
thx