I hope I'm posting this in the right area. I just ran into a big problem, because I didn't think to find out about this first. My son decided he wanted to start playing this, after watching me a few times. Well, I already all five slots filled up so I installed it again, in C/games/virtual families, keeping it separate from mine that was in c/program files/virtual families. He was able to start a whole new game without a hitch, but then when I went back onto mine today, ALL my families were gone, and replaced by his.

I went into his game, and then mine again, to double-check. Sure enough they are now identical. I realized what happened. They both used the same game save folder in "My Documents." I thought for sure his new install would create its own save folder.
So...after that rambling explanation, I have a two-part question. I bought the Windows version, but I'm playing it on my Macbook Pro, on Windows XP through Bootcamp. I was thinking I could just install one on the Mac side and keep one on Windows. But would I have to pay for another one, to have it on the Mac side also? If so, is there someplace where I can tell one game to use a different save folder? I was so bummed, because I had a couple families that were WAY up there in generations and money, and a couple I worked really hard at finding just the right people to adopt and pick for spouses.

Sorry to babble on for so long. Thanks for any help you can give me!