I'd probably say download a free Knoppix/linux boot CD, recover what data you want/need off the NTFS drive (since reading NTFS in linux is no problem), then reformat it

As for not being able to enter the setup for BIOS, I doubt that's related to your HD issue. Perhaps you're pressing the wrong key to enter it, or if you've passworded it and lost the password, try looking in your motherboard's manual to see how to reset the BIOS and it's password.