I want to start selling something, and I want to have a shoppingcart.
I want to have the ability for the user to login with the same info as the cart so they can download the product?
Any one have any ideas on how I can accomplish that?
Try PHP sessions (not cookies) combined with a database to save carts when prompted. Then have some script run on the same server maybe once every 10 minutes and check how old a database entry in the cart table is, if it is older than say, 1 week, delete it.