G'Day, Darkpsyco, Welcome to TSF!
To make your new 160Gb HDD the "Slave" Drive, you need to do this....
Connect the 160Gb Hdd to the middle connector of the IDE ribbon, with
NO jumper pins.
The jumper pins can be found at the rear of the Drive between the IDE Ribbon socket and the Molex power socket.
When you connect it, Windows® should detect it as "found new hardware", and automatically install the Drivers required for it to operate.
However, if this 160Gb HDD is brand new; then, you will need to format it so as to use it.
(There is no need to install Windows® XP on it, if you intend to just use it for storage.)
If you are not sure how to format the new HDD, post back and we will give you a guide to do it.
Hope this answers your query.
Kind Regards,
__________________
Dave T.
If it works, Don't fix it!
Especially if Bill Gates had anything to do with it!!