eCart is compatible with Paypal Payments Pro and PayPal Payments standard, it is not compatible with PayPal Advanced payments, that will be added in eCart6.
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.