I had the opportunity to work in an extremely active osCommerce store where this module is installed and was able to work out many issues, both unknown and known.

* When using the refund feature in the admin, the refund amount is added to the order total list.
* Refund window in admin has been updated to be easy to understand.
* Now checks for missing code in the payment class and the ancient bug in checkout_process.php
* Now supports CCGV coupons with free shipping.
* Improved order total calculation code.
* Fixed htaccess files protecting the includes directory.
* Added missing credit card images and fixed .htaccess permission problems.
* IPN feature should function correctly now
* Improved error reporting.
* Fixed installation instructions in the readme and updated the wpp_diagnostics.php script.

Support Thread: http://forums.oscommerce.com/index.p...iew=getnewpost

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