I have no intension of saying how to crack passwords on an open forum and I hope that no one else will either. It is recipe for even more stolen laptops.
Take to a local computer shop with proof of ownership and ID and they may be able to help yopu.
If it is a password in the security chip on the motherboard, then you have had it as they are designed to turn stolen laptops into scrap.
T, June 2009