You need to uncompress the OBJ file, later versions of poser came with compressed files.

Open Poser and go to the top menu Scripts->Utility->uncompressPoserFiles

Browse to the folder
C:Program Filese frontierPoser 7RuntimeGeometriesP4NudeWoma

Check "Uncompress Geometry files" and click OK.

Then try again with Ojaction Mover.