There are a number of tutorials floating around the web on the procedure, but it is not as easy as it would seem.  Just taking a few photos does not exactly give you the right lighting and textures you really desire.  One major problem with such textures, is specular highlighting, which will not interact correctly with Poser's basic lighting. Photographic imaging should be handled by a professional photographer where careful lighting can be controlled and manipulated.  Profile photos work best for providing morphing detail which you can accomplish by just spinning parameter dials.