From Scuba Diving Calculators:
The Simple Script Cart is a fantastic full Web site in itself. You can add hundreds of website scripts set how many days your clients can download the script(s). The Simple Script Cart is based on Paypal Transactions. You can create catagories, links to other Web sites, check orders, send newsletters and more.
Youll love how easy this script is. It even has a secure login control panel for you. Installation is easy. Comes with and installer as well. Make big $$$ with this script.