Well guys... I always have problems to create and export normal maps and color textures from Zbrush and to import in a correct way into 3Dsmax. I have seen some tutorials on internet but none of them works to me. Probably the problem is with me. I have my own way to do that today (after nights and nights)and works perfectly. Normalmaps (if you didn't know) is very useful to apply the details created in zbrush (or any other software) in a low mesh into max, maya, c4d... If to interest someone here I can do a tutorial.