make sure you have jumper set correctly
Shouldn't be using a jumper with SATA.
Open up your case and make sure all cables are connected. In my computer at least, the power and SATA cables have a tendency to get knocked out easier then IDE ones. If they are plugged in, and still no-go, put the drive in another computer... just to see if it works.
Unfortunately this is going to be almost certainly a dead drive if none of the above tips work.