1) Log in to http://www.acustica-audio.com. 2) Go to the product page and click on order, then click on the shopping cart. 3) Fill in the paypal forms (make sure you pay with an email address that matches your Acustica Audio forum account). 4) Receive a confirmation from paypal/Acustica Audio. 5) Acustica Audio will upgrade your user account to customer.