Go to wherever your SoD .400 is at and open the file. You're looking for the "WWW" folder. Open that and you'll see your "Save" folder. Basically once you've downloaded the new version and unzipped it just find that same "WWW" folder in the unzipped version and copy-paste your .400 save file to the new one and you *should* be good to go once you launch the game again. Just make sure your last save for that version is in a city or somewhere NOT on the world map that you know won't be changed by an update. o7