Hi Jason, thanks for replying.
I have the same issue on both Dreamweavers, one is Dreamweaver 10.0 Build 4117 (CS4) and the other is Dreamweaver 12.0 5808 (CS6).
I have not tried upgrading to 12.0.1 but still, why is not working on CS4?
If I copy an eCart from my previous sites then I can edit it but as soon as I try to run the checkout wizard nothing happens. I enter in all the info on every step, and then click on Finish, nothing happens.