Re: WinServer 2003 R2 and unknown 2 PCI-Devices.
I'm currently using Windows Home Server, which bases upon Windows Server 2003 and I've met with the same problem. BUT, I got it working after a couple of tries, some late hours and needed to get rid of some aggression ...
After a lot of googling etc. I figured out that one can use the sffdisk.inf so I copied that from my Windows XP Home SP3 PC to a seperate directory where the fit-pc2 I use has access to. Let the fit-PC2 search for a driver in that directory, et voilà it had found a SD memory disk. The HW wizard tries to find the file sffdisk.sys, copied the file from the XP PC located in the system32\drivers directory to the above destination directory and manually selected that in the find file dialog on the fit-pc2. This same copy and selection process needs to be done for file sffp_sd.sys. Then the wizard completed and the device manager reported in the disk drives node the found hardware.
I copied some mp3s to that newly found disk and they played just fine on the fit-PC2.
The solution worked just perfect for me and solved the SD HD problem I had.