In the mean time, the Express Checkout option that is already in PowerStore is a free service also, you cna request API Credentials from paypal to work with Express Checkout and delete the credit cart form from the checkout page.
Your friends over here at WebAssist! These Dreamweaver extensions will assist you in building unlimited, custom websites.
These out-of-the-box solutions provide you proven, tested applications that can be up and running now. Build a store, a gallery, or a web-based email solution.