Some comments on MapFinder:
1. You MUST have the correct directory in the MF Setup-General-Autosave Directory. This is the same Foldername where your version of Civ 3 defaults to saving games when you hit Ctrl-S.
2. If you run MF long enough, your computer
WILL freeze up. My understanding is that it "leaks" memory and eventually there are not enough resources available to run it & Civ 3. I have some pretty old computers running it and they will run for about a week before they freeze.
3. To make sure you have everything set correctly, let MF run for a while (i.e. 5 minutes) with an always TRUE condition like Domination Limit > 0. If it doesn't save every map, something's amiss.
4. I'm using version 6.4 with Windows XP and it works like a champ. Could not have finished a game in 3800BC without it!