make sure that you completed the step to copy the install/webassist folder in the Power Store download over the existing webassist folder at the root of the power store files on the remote server.
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.