[HWT]

Hmmm...

this is the entire .php file:

<?php
/*****************************************************************************\
+-----------------------------------------------------------------------------+
| X-Cart                                                                      |
| Copyright (c) 2001-2005 Ruslan R. Fazliev <rrf@rrf.ru>                      |
| All rights reserved.                                                        |
+-----------------------------------------------------------------------------+
| PLEASE READ  THE FULL TEXT OF SOFTWARE LICENSE AGREEMENT IN THE "COPYRIGHT" |
| FILE PROVIDED WITH THIS DISTRIBUTION. THE AGREEMENT TEXT IS ALSO AVAILABLE  |
| AT THE FOLLOWING URL: http://www.x-cart.com/license.php                     |
|                                                                             |
| THIS  AGREEMENT  EXPRESSES  THE  TERMS  AND CONDITIONS ON WHICH YOU MAY USE |
| THIS SOFTWARE   PROGRAM   AND  ASSOCIATED  DOCUMENTATION   THAT  RUSLAN  R. |
| FAZLIEV (hereinafter  referred to as "THE AUTHOR") IS FURNISHING  OR MAKING |
| AVAILABLE TO YOU WITH  THIS  AGREEMENT  (COLLECTIVELY,  THE  "SOFTWARE").   |
| PLEASE   REVIEW   THE  TERMS  AND   CONDITIONS  OF  THIS  LICENSE AGREEMENT |
| CAREFULLY   BEFORE   INSTALLING   OR  USING  THE  SOFTWARE.  BY INSTALLING, |
| COPYING   OR   OTHERWISE   USING   THE   SOFTWARE,  YOU  AND  YOUR  COMPANY |
| (COLLECTIVELY,  "YOU")  ARE  ACCEPTING  AND AGREEING  TO  THE TERMS OF THIS |
| LICENSE   AGREEMENT.   IF  YOU    ARE  NOT  WILLING   TO  BE  BOUND BY THIS |
| AGREEMENT, DO  NOT INSTALL OR USE THE SOFTWARE.  VARIOUS   COPYRIGHTS   AND |
| OTHER   INTELLECTUAL   PROPERTY   RIGHTS    PROTECT   THE   SOFTWARE.  THIS |
| AGREEMENT IS A LICENSE AGREEMENT THAT GIVES  YOU  LIMITED  RIGHTS   TO  USE |
| THE  SOFTWARE   AND  NOT  AN  AGREEMENT  FOR SALE OR FOR  TRANSFER OF TITLE.|
| THE AUTHOR RETAINS ALL RIGHTS NOT EXPRESSLY GRANTED BY THIS AGREEMENT.      |
|                                                                             |
| The Initial Developer of the Original Code is Ruslan R. Fazliev             |
| Portions created by Ruslan R. Fazliev are Copyright (C) 2001-2005           |
| Ruslan R. Fazliev. All Rights Reserved.                                     |
+-----------------------------------------------------------------------------+
\*****************************************************************************/

#
# $Id: order.php,v 1.1.2.2 2005/01/12 07:41:43 svowl Exp $
#

require "./auth.php";
require $xcart_dir."/include/security.php";

require $xcart_dir."/include/categories.php";

if($active_modules["Manufacturers"])
    include $xcart_dir."/modules/Manufacturers/customer_manufacturers.php";

require $xcart_dir."/include/history_order.php";

$smarty->assign("main","history_order");

# Assign the current location line
$smarty->assign("location", $location);

func_display("customer/home.tpl",$smarty);
?>

I've checked if this is the same for 4.0.14 and 4.0.15 and it is.

Are you referring to order.php in the cart's root folder, or an order.php in a different folder?