Thanks for letting us know about this. the link has been updated.
the correct link for the CSS Sculptor help is:
http://assets.webassist.com/html-help/271/index.html
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.