Unfortunately there is no way to ensure that the system is yours so Tom's Forum does not allow providing help in bypassing passwords !
The only help that can be provided would be to suggest :
1.) use the hint that you set up when entering the password to help you remember what it was
2.) Use the password reset disk you created when setting up the password to reset your password
3.) Logg in to the system using the administrator account and password you set for the admin account and once logged in use that account to reset your user account password.
4.) If none of those work - use your install disk to reformat and reinstall windows and your programs ( NOTE : doing so will lose all personal information and require starting over with a new installation but will get your system back up.)