Big chest from a box

So ive started on the tresure chest thats in the concept, having a few problems with this one though as when i export my textures back into 3ds Max all the textures come out wrong, had a word with the wise men at college Dean/Stas see if they can come up with some ideas wats going wrong :( anyways here is the chest in all its glory even if it looks rubbish in Max it looks cool in Mudbox

and this is the resulting export to photoshop through Mudbox
its just not capturing all the textures for some reason