Thanks for getting back. I still have a few questions.
I have created the pages and followed all your steps except the redirect. I found the behaviour on the confirm page. Where do I have to redirect it to?
Does the store order summary behaviour have to be redirected too? And if yes, where to?
Is it OK to delete the credit card info from the checkout page?
Is it OK to delete all the PayPal pages (pp_confirm, pp_checkout_success, pp_cancel and pp_checkout_failure)?
I copied the database tables from the sample store and used them for our store. The ultimate goal is to have the customer just submit the order without payment. We will then ask for advance payment or send a bill.
I will probably come up with more questions :)