Just letting you know that I've been working on the game a bit, and should have an update soon. I'll make a Win32 version part of the update (probably a separate download). I'm also going to test this on an older machine of mine, so it should hopefully be able to run on a wider range of hardware.
Looks like that will require a full rebuild of the engine from source (I'm using the standard UE) and not sure how well it would run - definitely no means to test it currently. I can build a 32bit version, but the XP fix isn't viable right now. Sorry!