You shouldn't have needed to update your add to cart page at all... just the eCart object itself. How about just go in and change the "Name" column in the cart and mark it as unique.
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.