When you register online, please complete the registration all the way to the payment/check out page. (Do not stop at the shopping cart). At this point you may select to pay with a credit card or "Mail My Check" which is the drop down under the credit card option.
On this final page, you may also choose to add another email address that the confirmation and invoice/receipt will be sent to.
Please check your email for your confirmation and invoice/receipt. If you do not receive these, please contact firstname.lastname@example.org or to confirm your registration went through.