Hi,
Har drive jumpers are very easy to set.
On the rear of the drive next to the IDE connection there will be a small row of normally 8 pins in two rows of four. Small Plastic connectors with metal terminals fit over these pins to confifure the drive.
On the drive there will be a label or engravings to show what the various pins and configurations are for.
Simple guide here
http://www.pcguide.com/ref/hdd/op/jump.htm
hth
Ceri