Flashing to a new bios to deal with the password was cunning, credit to you for that. I don't like flashing from windows so wouldn't have thought of this.
However you don't have to rest windows to stock settings to remove a password. There's a cd called hirins which will do this along with many, many other things. No manual though. Failing that I think I found a 12mb iso which peacefully removes windows passwords when you boot from it. Of course if you had to reset things before flashing the bios this might not be an option.
Curious as to why you didn't take the hard drive out, image it using another computer, then put it back in?