Let me try. You talk about Poser 4 and Poser 5 here. Looks like you have installed both. I guess Vue is directed to Poser 5. And the Poser 4 file contains things, especially textures, that are not available in your Poser 5 Runtime(s). Therefore Vue can't find them and therefore they are not loaded. The problem is that Poser files does NOT contain full pathnames to the stuff that are used. Like textures or geometries. The pathnames are there only from the application folder onwards. So other programs need to do searches over all your hard disks (in case) or need to know where your Poser application folder is so that they can find the things. The other things i don't really know, hard to say something without seeing and/more information.

One day your ship comes in - but you're at the airport.