White screen on registration and debug not working

[PigPog]

Hi all. :)

I'm getting a white screen when you press the submit button on the registration form. I have read this thread and although it was helpful, I'm still stuck.

I'm very new to shopping carts so I might have made an error somewhere. Here is the contents of my includes/languages/english/create_account_success.php file:

<?php
/**
 * @package languageDefines
 * @copyright Copyright 2003-2006 Zen Cart Development Team
 * @copyright Portions Copyright 2003 osCommerce
 * @license http://www.zen-cart.com/license/2_0.txt GNU Public License V2.0
 * @version $Id: create_account_success.php 4816 2006-10-23 04:08:52Z drbyte $
 */

define('NAVBAR_TITLE_1', 'Create an Account');
define('NAVBAR_TITLE_2', 'Success');
define('HEADING_TITLE', 'Your Account Has Been Created!');
define('TEXT_ACCOUNT_CREATED', 'Congratulations! Your new account has been successfully created! You can now take advantage of member privileges to enhance your online shopping experience with us. If you have <small><strong>ANY</strong></small> questions about the operation of this online shop, please email the <a href="' . zen_href_link(FILENAME_CONTACT_US) . '">store owner</a>.<br /><br />A confirmation has been sent to the provided email address. If you have not received it within the hour, please <a href="' . zen_href_link(FILENAME_CONTACT_US) . '">contact us</a>.');
define('PRIMARY_ADDRESS_TITLE', 'Primary Address');
?>

I've tried using the Debug Error Logging Utility but it's not working. I have my cache folder set to writable as instructed, but the /cache/myDEBUG-xxxxxxx.log file isn't generated. What am I doing wrong?

If you need any more information please ask and I'll post it asap. I'm grateful for any help you guys can give me because I need to get this sorted out and out of the way.

Thanks,

Kate xxx