Online orders are handled by a third party reseller, using a secure e-Commerce web server. When you order online, you have a choice between using your credit card, bank transfer, cheque or cash. This is probably the easiest way to order.
You will receive a registration code by e-mail directly from the author. I strive to deliver the code within 24 hours (please bear with me if I am occasionally away from my e-mail for some days).
You download the program from here, install it, and upon starting the program, enter the registration key. The registration key will unlock the program’s full functionality.