Greetings Kimersue and welcome to the sharecg forum.

Try this link  http://my.smithmicro.com/tutorials/1600.html

It has information on the structure of the runtime folder for Poser 5 - 7 but later versions and DAZ Studio can both access the runtime. Basicly the runtime folder is organized to into subfolders for figures, poses, textures and so on. Textures will be in the textures subfolder of runtime or a subfolder of it.

I hope this helps and is not too brief.