The point is you have to make a new installation disk with the drivers files included.
The easiest way is to use nlite http://www.nliteos.com/ .
Just copy your W2k3 Server installation disk to your hard-disk.
Get the the Intel SATA RAID Controller driver for F6 Floppy disk method.
Extract it with ZipGenius. Twice, also extract the exe file until you'll get the *.ima file.
The *.ima file is the image file for the floppy disk.
Extract all drivers files from *.ima with tool from http://www.winimage.com/extract.htm.
Run the nlite and follow the instruction.
And have fun with the new installation CD.
