Does the drive even spin up?
If it doesn't work on SATA either, it's not just a connection issue anymore.
If you don't trust yourself enough to do that, find a friend who is somewhat tech savvy.
You need to take the HDD out of the encasing and connect it internally to a PC (at least the appr. cables need to be connected....just make sure not to short anything out)
If the drive still doesn't work, it's most likely history