You can pay for your listing at any time, even if it expired. Simply login, click on "my account" in the menu on the left side of the screen and scroll down to the order section.
If you have forgotten your username or password, you can have your login information e-mailed to you by going to this page.
If your e-mail address has changed, and can't remember your login information, email the administrator. Include your old e-mail address and full real name as verification of your identity.
The mailing address for sending in cheque or money order payments is on the invoice. Login to the tutors page and look for the order form on the main page you come to (after the "Tutor's news"). An invoice is generated after you click on "submit." Print out the invoice and look for information on mailing in a payment at the bottom of the invoice.