Maybe this will help you:
http://www.subsim.com/radioroom/show...56&postcount=1
I did notice that x in sh4 is x in 3dsMax, y in sh4 is z in 3dsmax and z in sh4 is y in 3dsmax. In other 3d modeling software its even different, for example sh4 model imported to Blender is displayed on z axis (or y or whatever vertical\north-south one is called in Blender - confusing).