Hi topcat,
I'm not familiar with the BigFish version. Have you enabled your Hidden Files & Folders? That might help.
You might also need to post directly on the BigFish forums for a saved game. There are three different formats for this game: US disk, European disk, and BigFish download, and saves for one are not compatible with any of the others (we've found). MaG and I have saves for the US disk version.