Ooh... laptop BIOS protection is ****in' insane. If you've taken all the batteries out and it's still got that password prompt, you've probably run into the same thing I did. Which means, basically, the thick placemat suggestion's probably the best one. Theoretically, there's some jumpers you can reset to wipe the BIOS back to factory settings, but unless you have a good layout of the motherboard it ain't gonna happen, and paying some repair guy to do it'll cost more than that hunk of junk is worth. I couldn't even find a jumper on the one I tried to password-crack.
If it did work afterward and you just neglected to mention that, then damn you, you lucky bastard.