Windows 7 - XP Mode for all users and drive letters

Hello,
I followed the instructions for making an XP Mode install available to all user that I found in this thread:
Setting up Windows XP mode for all users

This worked great for another user I had log in and the programs that I'd installed in that vm were there and everything. Very nice! However, the drive letters didn't come over with the .vhd copy and in fact, there didn't seem to be any of the network drives available. So, on the windows 7 machine, there would be a drive N:\Computer\Sharepath
in XP Mode that would map as N on hostname (Windows 7 pc with the XP vm). But, the programs that are installed access the network drives using UNC convention \\tsclient\N\path.

Extra information:
One of the programs installed in XP Mode is ArvView 3.2a and it uses network paths for shapefiles to display maps. When I tried to map a drive to a shapefile in ArcView, none of the drive letters were available. Yet if I made the registry enter, where it looks for paths to shapes files, using the UNC \\tsclient convention, all the files where found.

So, I need help with how to make those drives that were available with the original XP Mode virtual machine available to all the other users that create a new vm using the image I made available.
I hope I didn't leave the water too muddy here. I appreciate any help on this issue.

Steve