Did you have a Windows Home Server (based on Windows Server 2003) with multiple hard drives installed? If so, you may be out of luck. WHS uses a technology called drive extender (see here for more: http://en.wikipedia.org/wiki/Windows_Home_Server).
Basically, this takes all of your HDDs and "combines" them into one large DATA disk. I have a WHS system with 8TB of storage spread across 6 HDDs.
It appears that you are trying to access one of the drives from that shared volume. Is that correct?