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Can someone who has the game share what resolutions are supported? I'm specifically interested in 1024x600 or 800x600.

This question / problem has been solved by timeslipimage
I don't know the resolution for sure but the ratio is 4:3 with black bars left and right. I see no way to change the resolution.
iirc, the resolution is a fixed 640x480. It'll scale to fill your screen as far as possible while maintaining the aspect ratio.
Yes, the game is 640x480 but tries to use your current desktop resolution and stretches the graphics.

If you have a good TFT with really great interpolation or a CRT monitor (like I do), I suggest choosing "Run in 640 x 480 screen resolution" in the compatibility tab of your shortcut properties.
chose run in 640 x 480 resolution, i got win 7 64 bit, nd a widescreen monitor and it be runnin fine, fab game
Is there any way to change the resolution by modifying a file?