Ray updated the WA_eCart/WA_eCart_Definition.php file to fix this issue.
You should back up that file so it does not get over written.
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.