HI, me again
I dl the trial of mudbox and I done a pair or test np,
also I did some NP using 3dbrush, for compare both the software.
The maps seems to be right:


but , using both the softwares ,the final risults is not that right:
Where in the highpoly models there are bumpies, the normal mapped models do shows indentations.
Many details ,done with Mudbox ,are missed also.

The shader seems to be works, there are some mistake in the detailing process.