The game does save to a temporary folder first, but from what I recall (I think I checked under version 1.33/1.34) the game does not use '(1).tmp' as the extension. Unless the game really screwed up, there is something else involved in, or responsible for, the problem with the saves.
Sorry; I don't have any useful advice, I was just commenting on your post. <img src="/ubbthreads/images/graemlins/disagree.gif" alt="" />