You are now on the Registration Page. This is where you will have access to the Constant Contact Registration Form, as shown below.
All you need to is click on the Registration LINK,and it will automatically take you over to Constant Contact and the actual Registration form.
From there, all you need do, is complete the form, select the payment plan that fits your needs, make payment and you're done. Nothing else for you to do but wait to receive your confirmation of payment a short time later.