OK. I am using website payments pro UK and Express checkout, obviously 2 different methods with 2 seperate set of pages. So obviously I will need to update 2 pieces of code.
Can I ask why don't WebAssist know which code needs changing seeing as you developed the extensions that write the source code? If I am brutally honest you should know 100% already from working with PayPal how their code works and what is required to update it from v3 to v4?
Most of us bought eCart because it simplified the task of creating a cart and saved us having to delve into the cart code.