I've recreated all the checkout pages, same result (INVALID). SagePay won't support me until I get the pages at least talking to their server. I'm taking the "notification checkout" option as quoted [When you use Sage Pay there is no local checkout option, you can choose either remote or notification checkout. The notification checkout should produce a checkout that you can enter a credit card into and keep the user on your site] But
There are no credit card fields.
Very confused and running out of time. Where do go from here?