I don’t know any.
You should ask the manufacturer of the mainboard for a suitable W2k3 RAID driver, but I doubt, that you will get it.
Intel’s C600 Chipset Series have never been designed for being used with Windows XP or Windows Server 2003.
EDIT:
Maybe there is a chance to get W2k3 installed by using the attached Intel textmode driver:
@power :
Today I got access to brandnew Intel RSTe RAID drivers v4.0.0.1040 WHQL, which do support
a) the “Intel(R) C600+/C220+ series chipset SATA RAID Controller” (which seems to be the especial RAID Controller of your mainboard) and
b) the OS Windows Server 2003 (the driverpack contains the absolutely needed file named TXTSETUP.OEM).
You can find the download link of the 32bit Intel RSTe drivers v4.0.0.1040 WHQL within the start post of >this< thread.