If you follow Miss B's instructions you should restore the Subdivision Levels sliders. I just loaded the Poser 11 La Femme, L'Homme, and La Femme Pro into my scene and each loaded with Subdivision active. Technically, and as Miss B mentioned, they should load with subdivision. Where are your models installed? Hopefully in a share files location.

Edit: Even selecting a body part, you still have an option to subdivide at the check box.