There may be a PHP error occurring on the page causing the redirect to faile.
Add the following code at line 1:
<?php
error_reporting(E_ALL);
ini_set('display_errors','on');
?>
to turn error reporting on.
please post back the error that is occurring, also if you could add the php page to a zip archive and attach it to your replay so I could see the entire code on the page, that would help me see what is going wrong.