In the release of Virtual Server 2005 R1 SP1, Microsoft included a tool called VHDMount which allows one to connect to a vhd disk on your host operating system as if it were a separate physical disk. It makes sharing of the files a lot more simpler. Our partner company, Cerkitek has a good blog post on the usage of this tool. You can access that post here:
http://cerkitek.wordpress.com/2007/08/12/accessing-virtual-disk-files-with-vhdmount/
