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Change the WIDTH= and HEIGHT= to the above values. Now, when you run GameSetup.exe you can actually see all the settings and can hit the "Confirm" button.
Make sure you run the game under administrative mode; and if you buy through steam make sure steam is running as administrator or you get an error saying that steam must be run as the administrator on the first run or some such.
Hopefully this helps anyone that wants to get or play this game.