Ecart5 missing steps for tax rules and email receipts

Hi there,
I've just purchased eCart5 as my client wants to switch from paypal standard to paypal pro - given the changes with the api details paypal now requires, I thought this was a sensible option. I've just trying to rebuild my checkout pages with the checkout wizard. However it skips from the 'will you supply shipping' page to the style pages without offering me the option to customise my tax rules or the email receipt. Any ideas?
The other problem I'm having is dreamweaver keeps crashing when I run the wizard - I've got it to function a couple of times, don't know if its something to do with my setup as this is a new machine (so its got plenty of memory) with windows 7 installed and Dreamweaver CS3.
Any help gratefully received.