Hello,
Is it possible to create a form where user can select:
a) Free
b) Product A
c) Product B
When selecting A user get send to Paypal.
After payment user get sent to a form to create a "A" post.
Later the user deside to upgrade to product "B"
He log in to his account, select upgrade to "B"
He pays with Paypal again
and get a prepopulated form from his post "A" with aditional fields to comlpete.
Regards
Gerd