I do know that the feature only works with PayPal buttons, I'm completely new to this oscommerce thing, havent even downloaded the contribution yet and have no clue how to alter configs. Maybe adding a PayPal Shopping Cart button you think? The buttons it works with are Buy Now, Donations and Shopping Cart
https://www.paypal.com/cgi-bin/webscr?cmd=p...landing-outside
Best of all, this upgrade requires no action on your part. The new payment process automatically applies to the following Website Payment types: Buy Now Buttons, Donations, and PayPal Shopping Cart, as well as Request Money and PayPal Invoicing.