Usually you have to open a page in Dreamweaver after installing to run the secondary installer. It sounds like you may have missed that step and gone straight to the webassist menu.
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.