Common "first time" problems... ¹

your textures cannot be 24-bit (16M colour) bitmaps (*.bmp), not tgas, gifs, jpgs.  At the very least, try with a basic 8-bit (256 colour) bitmap first.

they NEED to be placed in the correctly typed TEXTURE folder  (and don't fool yourself by thinking no one writes "texure" -  guilty parties shall remain nameless.)








¹ and you cannot be considered a serious flightsim modelling 'expert' until you've done one of these at least once .. especially after you know better!

As for importing *.max files into Gmax: it can't be done!  I've been looking for a fix for this problem for a bit now, and I haven't found squat.  The only solution that has been forwarded is to download a free trial of 3DS Max and convert the *.max to a *.3DS file and then import into Gmax.

As for your textures: what color is the baseline for the model in Gmax?  If it's white, then your texture folder and aircraft config are set up wrong.  If its a different color, the texture files themselves are to blame.