or just frikkin run the fucking labtop on fucking SAFE MODE lol i run other pplz computer on save mode and i dont have to log in. Iono it should work for you. Oh btw just tap f8 hella wen starting up and it will go into a mode menu, just choose safe mode
For WinXP there are some programs that can decode/reset the password.
If your rig uses this OS then search for "Super WinPE" and use "Locksmith" if I remember correct.
Here's a overwiev of the boot cd: HERE
Hope this helps, but dont forget RTFM first!
Yes, just rebot the computer... hold f8 as it starts up and press "Safe Mode" and you should be able to just login as the administrator, unless the admin has a pass on it (Probably wont) and when you get on, make a new account and remove the other accounts, reboot into normal oot and your done