Problems installing Virtual PC

I have been trying to install Virtual PC so I can run Windows XP Professional (I need to run a few PC based programs for work). After the install, I get an error that says something like "Virtual Switch Networking failed to load, Code: A1004". When I try to contintue the installation, everything works OK until the black screen opens that says "OS not found. Install an OS on this hard drive." I insert my Windows XP Professional CD and nothing happens. According to the installation guide, Virtual PC is supposed to "capture" the disc. I tried to capture it manually by selecting "Capture Disc" under the "Drives" menu. Has anyone had this problem before or know how to fix it? I've tried reinstalling Virtual PC from several different discs, and on different machines, but always run into the same problem. Thanks in advance for the help!!