OK, if its like a VM in Windows, you should be able to determine the path in Windows by right-clicking the MS program; Properties; Shortcut and look at "Start in", go there and create a "Maps" folder if it doesn't already exist, to dump your files into for MS to find them. MapSource will look for these files differently depending on what virtual Windows version you're running in your Mac, XP or Vista/7. Also have a look at this: [Only registered and activated users can see links. ]
Edit: Thought i'd have another look at this as your statements "Yes, it's similar to VM" and "I'm starting with Mac" seemed somewhat contradictory. I've done some research on CrossOver Mac and it seems it's not a VM, it's an Emulator hence you said "I'm starting with Mac". So what i've suggested above may be less than helpful. However, if you know your way around the mac os, you may know how to determine the path and locate or create the "Maps" folder anyway. Cheers.
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