If you have DXTBMP or something similar you can flip the image and alpha of the four main textures (P40_1_T, P40_2_T, P40_T_3, P40_T_4) in the FS9 paint and save them as DDS. Then just drop them into a copy of an existing FSX texture folder, overwriting when asked, rename the copied folder, add the new name to the cfg and - well, they do seem to fit! You probably have to delete the bumps & specs though, or redo them to match the new paint. As for the modern helmet, I think Shift-3 gives you the option to change it to an old-style leather helmet.