Registering is a 2-step process. Complete registration form and click "Submit Registration" before going to "Step 2, Make Your Payment."
STEP 2: MAKE YOUR PAYMENT enter your name and amount to pay (include $15 PayPal processing fee) and then select your method of payment. Click the black "debit or credit card" button to use your own credit/debit card.
After making your payment you will be brought back to this page.