Check out wizard not functioning

Im getting an error when I click on the Checkout Wizard on eCart 4 -- it says "While executing onLoad in WA eCart CheckoutWizard.htm, a JavaSript error occured"

Any suggestions?

Delete the Dreamweaver Cache file from the users configuration folder:
common_installation_issues.pdf

Uninstalling the cache file didn't work. The next step is to uninstall ALL my extensions??

I would try uninstalling ecart, then installing it again, what version of Dreamweaver are you experiencing this in?

I tried uninstalling eCart and reinstalling - same error - Dreamweaver CS3

What is the build number of the Dreamweaver version?

Go to Help -> About Dreamweaver. click the about screen once to scroll to the end, the build number should be listed there.

9.0 Build 3481

I downloaded a trial for CS5 and installed the extension and got it to work. Im not at all familiar with 5 but I uploaded the file but Im missing something.
cicsaweb.php
cart.php

please send a copy of the WA_eCart/eCart1_PHP.php file so i can investigate the cause of the error.

eCart1_PHP.php

Im getting an invalid file type when I try to send this to you

If you want to email me, I can email you back the file and user id/password for the server if you need it. It will be tomorrow as I have to leave now.