Search for the offcial modeling sdk, or it might be in the full sdk.
@7th, 1. If he has have max he should use it, its a fine program and outruns G-max at any part.
And the cuncurrent version of G-max is 1.2, not 6, Your probably confusing it with Discreet's Autodesk 3d Studio Max 6.
This article focuses on G-max, but you should be able to extract the required information for 3d Studio Max out of it.
http://www.wunderboy.org/tutorials/gmax_smd_exporter.phpHope this helps you.