I'm selling a specific product (a book), and don't have content areas that people need to be able to get into. How do I prevent the users from having to create a username/password, and just enter their e-mail address? I just want site visitors to:
1) select a product
2) enter payment, shipping, and contact information (full name, e-mail address)
3) Click the checkout button (and other things will happen then)
I think this was done with PayPlans using a default account or generic account, but can't figure out how? Can you tell me which components/plugins I need to accomplish this?