you dont need to do anything actually. If you have connected it it should be detected by your computer. First you can verify that if it is detected by hardware.
If you are using windows then right click on myComputer->manage->disk managment option. There you should be able to see your second disk (mostly disk 1). Now just select it and format it or you can delete it and create new partition.
Hope it helps.
if you put the jumpers right and the cable is intact the computer should see the driveif on same ide cable - set old drive to master and new to slaveif on cable alone - remove the jumper completely in WD and set to master in other manufacturersin sata drives there is no jumperif you use linux enter the command fdisk -l (its a lowercase L) and see if the drive appears in the answer. you may have to do that as administrator (root)