Use my time tested method.
Buy the product
Throw out the instructions with distain, before reading of course.
Use intuition to figure out where the item should be installed...
Plug in all of the cables that come with it. using intuition to figure out what goe where.
Then turn the system back on...go into the bios and root around there for a while until the answer hits you.
It's generally the most fun way to discover new technology.
But if you want the short cut...some might say, just read the instructions that come with the drive. If you bought an OEM drive, then do this:
Mount the drive in the case. It should fit the same way as your IDE drives.
Plug the 4 pin power cable into the drive...unless the drive doesn't have a 4-pin connector.
If it doesn't have a 4-pin it will likely have a flat SATA power connector...if you bought a retail drive, it will probably come with an adapter for power. Your Power supply, if it's new might have a SATA power cable as well.
Now, connect the red (they are almost always red) flat SATA cable to any of the SATA plugs on the motherboard. The connectors are right next to the single blue IDE connector on the bottom left of the boards (near the power switch connector block). Pick any of the connectors...it won't really matter which.
Close up the system and boot into the BIOS.
I'm not sure exaclty what your bios will look like, but you need to find an area that talks about disk drives and your promise raid controller. The SATA devices are managed through the promise chip, so that needs to be turned on. Then you need to make sure that all of the ports are active for either RAID or SATA. This option might not be present for you. Then save and reboot. You should now see a second screen come up after the initial boot screen. this is the promise RAID bios. hit f10 and enter that config. Here you should be able to select the SATA drive and you should be able to set it up as either a stand alone...or a single RAID 0 stripe with one disk. I don't think there is a difference in that choice. Once that is complete you should reboot and Windows will recognize your new drive...assuming that you have setup the promise drivers in XP.
Some things to note. If you are planning to build a RAID set, you can, I believe mix IDE and SATA on your board...don't do that....setup your RAID groups as all SATA or ALL IDE, you wouldn't want an IDE drive slowing down your SATA group. (not sure if this is even allowed in the BIOS). If you are trying to set this up as a new boot drive and you want your Windows to boot from this drive you will need to set it up as "bootable" in the bios and you will need to jump through some hoops in the initials Windows installation. hit f6 during the install and have drivers ready.
hope it all works out.