How Mac & PC can Share an iTunes Network Library

I thought I had started another post on this... I'm trying to find a way to share one iTunes 7.5 library, stored on a network drive, between my 10.5 Mac and her XP-PC. I want both of us to be able to play, add, and trash songs and video - it doesn't have to be simultaneously.

When you start up iTunes on a PC holding the "Shift" button down, it will ask you if you want to "Choose a Library..." or to create a new one. When you choose a library, the app looks for an ".itl" file. When I navigated to the network drive, it listed all of the directories, but no library file was apparent.

My Mac generated iTunes library file has no extension on it. Just for kicks, I added an ".itl" extension to the Mac file and it asked me if I really wanted to do it. I said yes and then I tried launching iTunes on the PC again.

This time it loaded the library up with out a problem. Then, iTunes began updating the library since I had just installed the newest version of 7.5 on the PC.

Now, my fear is that I won't be able to access the library file on the Mac. It's just a waiting game now.

UPDATE: It seems to work fine. I might not have even needed to add the ".itl" extension, but it doesn't seem to negatively effect the Mac version.