PAYING BY CREDIT CARD
If you want to pay by credit card, just choose the "Pay with PayPal option" and click on the gold PayPal button at the bottom of the page.
PAYING BY CHECK
If you want to pay with a check, just choose the "Pay by Check option", click on the blue button at the bottom of the page that "registers" your submission.
(PLEASE NOTE: you will receive an email confirmation of your submission. If you don't receive an email - something with the submission didn't go through correctly.)