|xpuser: "i cant get in touch with him" -OP|
bob: i use an app called Winternals. It is essentially an entire operating system that runs from a CD. You boot from the CD to run an OS, but it gives you control of the HDD(s) for all sorts of administrative options, including HDD tests and admin password resets.
Do you have another PC available? Try googling for Winternals and see if you can find a download.
you mean that there's no password on the BIOS, just the OS right? If the problem is an OS password from the previous user, why not just reinstall the whole OS and start fresh anyway?