I second ^^ but you can also try plugging in through the PS/2 port if it has it available (which it looks like it does). Also, your Windows copy may be OEM and thus tied to the MOBO, I find it hard to believe that you could access Windows at all if this is the case, but it could be.
i believe you are right how my hdd is tied to my old mobo. i put the hdd back into my old mobo and what do you know, everything works perfect. i bought the entire desktop as a whole 2 years ago and i guess the parts were not meant to be interchangable.
btw it was an HP computer i had in case anybody else runs into the same problem.