hi scorpion,
the model is MED is colored, that's partly why I don't understand it's black in the end :s
I took some screenshots for illustrate my problem

1) screenshot 1 http://www.noelshack.com/up/aab/1-5478020a36.jpg
the .mdl in MED, colored

2) screenshot 2 http://www.noelshack.com/up/aab/2-ee60303559.jpg
the basic terrain/earth + my noob model, all colored

3) screenshot 3 http://www.noelshack.com/up/aab/3-1775145999.jpg
in game, my model appears in full black :x

I guess there is a problem with my model but i don't know which one