If you have had a Bidder ID in the past, check to see if you are already registered with the system before signing up for a new Bidder ID.
Search for your BIDDER ID.
Register for a Bidder ID: New Registration
Change Your Registration Info: Change Registration
(add/change contact information, change password, add/change email)
LOGIN To Bidder Invoice Page to see that status of all items you have bid on!