The Birmingham Track Club membership database is maintained in RunSignUp. The best way to update your information is to edit your profile in RunSignUp. That insures that the BTC has the most current information. As a side benefit, it also means that when you sign up for events, your personal information is automatically entered into the event database.
Note:
RunSignUp has added the ability to store preferences such as emergency contact information. This allows RunSignUp to automatically fill in that information when you register for events. If you wish to edit your preferences, click the UPDATE INFO link on your profile page to make changes.