To create a new account, enter your email address and create your own private password.
Once you have entered this information, click on the "Creat a New Account" button at the bottom. this will take you to the next screen where you can enter your billing address, ship to address, and password. click on the "Edit" button by either address field to bring up a screen where you can enter the information.
Any time you need to edit this imformation in the future, you can click on the "My Account' button on the home page to take you to this page.