try adding the following at line 1 to see if a PHP error is occurring:
<?php
error_reporting(E_ALL);
ini_set('display_errors','on');
?>
If there are no PHP errors, find the following code just before the doctype tag:
<?php
// WA eCart Redirect
if ($buy->redirStr != "") {
header("Location: ".$buy->redirStr);
}
?>
and change it to:
<?php
// WA eCart Redirect
echo("redirect = ".$buy->redirStr);
if ($buy->redirStr != "") {
header("Location: ".$buy->redirStr);
}
?>
This wont so much fix the problem, but may point me in the right direction for finding the cause.