It's more likely that the RAID drivers aren't installing properly. When you press F6 and put in the floppy, are you using the latest ones from the GP download site?
Yes. I am using the driver that is currently available from the Intel download site. (Dir: 2k3-XP-x86_v.13.11.0922.2009).
I could try setting up with a strait install - non Raid, with just a single sata drive. This is a SBS2003 STD Ed. - original version. I have done a successful test install with SBS2003 R2. I am suspecting that I would need to use an install with SP1 or SP2 included.
Yeah, that sounds right. If it installs fine with no RAID, you may need the install version with SP2 slipstreamed in.