It's not that complicated. The basic steps are:
-Making the RAID driver diskette.
-Install the hard drives, to be RAIDed.
-Go into the BIOS and setup the RAID array that you want.
-Set the boot sequence, to have the computer boot off CD.
-Save settings, restart, and insert OS CD.
-At the blue screen during the Windows installation, look at the bottom. They will ask for 3rd party RAID drivers, and press enter.
-Insert the floppy RAID driver disk, and follow instructions.
-Then proceed to complete the OS installation.