Have now resolved the issue after finding a fix on this known issue with the template instance code.
workaround here - http://www.webassist.com/forums/posts.php?t=4509
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.