Sounds like you might need a tutorial on how a Poser style Runtime is set up. Unfortunately, since they’ve redone the forums I’m not sure where a good one would be.
I’ll give it a go if I can (anybody please feel free to correct my mistakes):
The top of the structure should look like this: runtime—> Geometry, Textures, Library.
The geometry folder will hold the object files and will have sub-folders for each different item or artist you have installed.
The texture folder will have any image maps that the models reference, and again there will be sub-folders for each model and/or artist.
The Library folder is what Poser, D/S or Carrara displays within the program so that you can browse for poses, props, figures etc. It’s structure will look something like this: Library—> Figures, Poses, Hair, Lights, Props. There may also be other categories.
The naming of these categories is a little weird or outdated. For instance, Figures will refer to anything that’s rigged, such as people or animal models, conforming clothing, conforming hair, vehicles and buildings.
The Pose folder will hold figure poses and also material presets or Mats to change the color of a piece of clothes or changing a skin texture.
The hair folder will (if the artist sets it up) hold non-conforming hair (non-rigged). Usually you can still adjust parameters with morphs.
The Prop folder will hold misc. props. Some will be parented to hands or other objects, some will not.
This is very basic, so your mileage may vary.