P3dO's "InDepth" view will give you much of that info with a hierarchical list of figures, textures, geometry files, etc. for figure, prop and scene files.  It would be nice to have that available in Poser itself though. It did sound like they might be looking at better file organization and management so maybe...

On a side note, www.3dlinks.com/3DNews.cfm, looks like the Quidam folks are announcing something new "N-Sided announces the launch of its offer for avatars creation dedicated to Virtual Worlds" I still think this is going to be the big market for3D in the next few years.

"Democracy is a pathetic belief in the collective wisdom of individual ignorance." - H. L. Mencken