Currently Being ModeratedFeb 17, 2013 5:36 AM (in response to shabee)
Sorry, but there is no way to bypass or recover a backup password. If you cannot remember it, you cannot use that backup.
Currently Being ModeratedFeb 17, 2013 6:13 AM (in response to shabee)
If on a Mac, and you elected to save such to your Keychain, you can recover it from your Keychain. Otherwise, you can't.
If you can't remember it, you'll have to delete your existing backups & restore the phone as a new device. Your data will be unrecoverable.