I knew this was an old thread, but it was the most recent one describing my problem.
The game froze (screen saver). I shut it off with program manager. I am on windows 7, but I did not install the game in "Program Files" (I never do if I can avoid it - too much trouble).
So I knew where the save games were, they just didn't show up on the load screen.
As such the link did not help me. For the benefit of others with this issue the solution is to take the backup folder (backup 1 normally) in the folder for the game you want, copy it to the save folder and rename it. Worked like a charm.
A simple solution but not readily visible on the forum