Minor technical questions, please. Where is the thing? Did you put it on the Primary IDE controller, or the Secondary IDE controller? Did you set the drive's jumper to Slave, Master, Cable Select? What have you done so far? Is it detected by your BIOS? What operating systems are you running on your computer?
Can you post the results of this, which you need to do as root? ->
fdisk -l (that's a lower case L)
You might have got the cart before the horse there.