According to mobygames.com this game is from 2010, so I'd try Windows 7 compatibility first, then work backwards to XP if it doesn't work with Windows 7.
Campfire Legends: The Babysitter is currently sold by
***Gamehouse***, and they claim it is compatible with everything from Windows 2000 through Windows 8. But they may be selling an updated version.
Sometimes there is nothing you can do about occasional freezes or crashes in a game except to start the game and cross your fingers that your save is still OK. In fact, I've had several games freeze or crash while creating an automatic save, and when I restarted the game I was exactly where I left off. I haven't played Campfire Legends: The Babysitter, but Campfire Legends: The Hookman was this way.