Hi,
I wrote little help on export md3 from gmax and 3ds max
people still have problem with this ,
tutorial requiring basic knowleage of modeling, isnt super, is basic but working!!! And there are more ways for place texture on md3 models ( shaders) this one is very Basic
here is http://www.truecombatelite.net/forum/viewtopic.php?t=6020&sid=5d3b8fafe9527c3f51eed9f1cde6a9fe