Accessing files from Mac OS X in VMWare Fusion?
I recommend using the Shared Folders feature in VMware Fusion. 

I have a Boot Camp partition as well running Windows 7. When I need to access files that are on the Mac OS X side from within Windows, I go the VM preferences and enable each folder I want to share (you can share multiple folders form different locations). All shared folders will then be shown on the Z:\ drive in Windows. 

Hope this helps.