Help How can i install this simple mod?

[AceDog]

I know this should be in the mods area but I have had no responce their!

The mod is for worldpay

http://www.oscommerce.com/community/...earch,worldpay

it has 4 new files - no files are over written in MSMAX 5.5.5!

plus a piece of code inserted:

Add: define('FILENAME_WPCALLBACK', 'wpcallback.php');
To catalog/includes/filenames.php 2

Note: "I also Added the line in catalog/admin/includes/filenames.php2

Seems simple but It just wont activate after selecting wpcallback.php in the Adminstation area.

I just wont to see the module displayed in the payment modules area.

People seem to have this mod working without problems in the oscommerce MS2.

what am I missing to install on MSMAX 5.5.5

It is in modules/Payment Modules, its named Secure Credit Card Payment, I was looking for a module called worldpay.