You have two ide channels on your motherboard. Each channel can hold two devices.
Depending on what you have installed now you will need to determine which channel and in what position you will install the drive.
Your current hard drive will be installed as primary master.
You also have a primary slave along with a secondary master and slave. You can only have one master and one slave on one cable.
If nothing is connected to the cable the hard drive is on then use that.
Physically install the drive in the machine with the jumper on the back of the drive set to slave(if your connecting it on the same cable as the current hard drive, if on secondary ide you will need to set it to either master or slave depending on the device that is attached to it already)
Attach the ide ribbon with the red stripe aligned with the pin 1 marking on the drive. Attach a power connector, you should have extras inside your case.
Once that is done, reconnect the power cable, restart the machine, as it posts watch for the message to enter setup or start tapping the delete key, you need to enter cmos setup and go to the ide configuration menu. In this menu you will need to set the ide channel you just installed the drive to. Set it to auto detect, save and exit.
On the restart tap the F8 key to get the start up menu, choose command prompt.
You should see the drive recognized when you boot. If you only have one drive letter for hard drive now (c) then the new drive should be D. Type D: and hit enter, with any luck you will go to the d prompt.
Now you will need to go back to the c prompt by typing C: and hit enter.
Type fdisk and press enter, answer yes to the LBA question.
Choose option #4 to view partition info, check to make sure the new drive is shown and the correct size. Note the drive number or partition identification.
If the drive is correct you will need to partition and format it.
Back at the main fdisk menu, I beleive one of the selections is to change drives, choose that one, make sure you choose the new drive and not the old.
Once you have the correct drive selected choose option #1, create primary dos partition, make if for 100% of the drive size.
Once that is done you will need to reboot and go to the command prompt again, type D: and press enter. This should be your new drive. Type dir and press enter to make sure it's not your c drive, you new drive won't have any directories or files on it.
If it's correct type format D: and press enter. You may need to go back to the c prompt and type Format D:.
Here is a link to fdisk and format for you to read and help with the process
http://support.microsoft.com/default.aspx?scid=kb;EN-US;q255867