This "c_move(what, vector_from, vector_to, mode);" is nonsense - did you have a look into the manual?
You are mixing up two different functions: c_trace is not the same as c_move!

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Old Game Tutorial: http://www.puppenheim.org/MITutorial.zip
Free Game Editor: http://puppenheim.org/AlienalsWeihnachtsmann.zip
http://www.puppenheim.org/blender_starting_main_settings.txt