It looks as if it is using the coordinates of Poser-space, which stay fixed, rather than of the object, which would move with it. I assume it has been uv-mapped? I don't have Poser 5, but I would assume that was the function of the Global Coordinates box at the bottom of the settings panel in your first screen shot: it appears to be clear, but try checking it and see what happens (probably nothing good) and then uncheck it in case something has become stuck behind the scenes.