Software

after post tap the F8 key until the screen comes up.

...if I recall correctly.

What you could do is boot into Safe Mode, copy his files to a separate partition or physical disk (you can get a good hard drive for < $100, and install it pretty easily with a philips screwdriver), then re-install Windows. You're pretty much stuck with re-installing Windows, unless you want to learn a boatload about Windows first.

When you say "it doesnt go through the password login", do you mean it goes straight to the desktop? If you get to the desktop then you can go into Control Panel and remove passwords from other accounts. If there is an administrator account password then you would need some type of passowrd recovery software like Active Password Changer: http://www.killdisk.com/products.htm#password_changer