As far as Textures go I think JeffH is correct on this. Anyway Poser always finds them for me. If it's for a Character I make a new directory under Textures with that Characters name. Then I extract the readme if it came with the character to that directory also. That way I can add more texures for that Character or prop to that same directory. Saves me a lot of time if I want to make my own stuff also.