What are you trying to do? There is no configuration change that should be needed. It is just a matter of updating the pages. WebAssist produces standard php code that should be easily viewed and edited with any code editor. Using Dreamweaver with eCart installed would allow you to use our wizards to update the code.
It might make sense to sign up for a 1 hour premier support ticket: http://www.webassist.com/premier_request.php
Then we can do a screen sharing session with you to quickly get you up to speed and help you make the updates you are working on currently.