I'm trying to allow the user to pay for a download file. I send the user through the store to checkout and complete the transaction through PayPal. I then return the user to a Thank You page, once the user has completed the transaction. Should I send them to the Reciept page? Why isn't Cart66 sending an email to the user after they've paid for the download? Why isn't the order showing up in the Orders area? Does this not work with PayPal?