Although not as tactful as one might strive to be, Suspishio is right (no hard feelings, Suspishio :) ). Due to the nature of the security involved, this is a touchy issue. The fact that the laptop wasn't initially yours and that the original owner went so far as to actually USE a bios-level password...I hate to say it, but your intentions do come into question.
If you have a legitimate reason, I apologize, but please understand our side of this. We're here to help those who need it, not help someone gain access to data that's not their own.
Again, if this is not your intent, then please disregard my statement.