If you want the camera to be pointed so that it pivots on a specific character, you'll need to either select the camera and go to Object>Point At and select the desired target from  the menu that pops up or, what I would recommend if you just want to be focused on a specific figure is to simply switch from the Main camera to the Posing camera is it is already setup to have whatever character is currently selected as both it's focus and it's pivot.

There are a lot of topics to cover when discussing morphs for Vicky through Zbrush, however the basic work flow I prefer is to zero out your Vicky (ctrl+shift+j to bring up the joint editor, then hit the Zero button... but make sure everything on the hip is set to zero as well), export her with everything unchecked accept "use internal morph groups" or something similar (it's late and I'm typing this off the top of my head without Poser open... sort of flying blind...). If you're using Zbrush 3.5, open the app and before importing, set your prefs so that Import Mat as Groups is OFF and Import Poly Groups is ON, then grab a polymesh3d object from the tool pallete and import your obj. If using Zbrush 3.1, it's basically the same, only you should make sure you have downloaded and installed the Poser Scaler plugin from Pixologic's website. Shouldn't be any manual scaling involved with either method though. I'll have a new dvd coming out in a week or so that focuses solely on production proven methods of doing morphs for V4, so in there, if you pick one up, you'll see all this covered and a TON more.  :) -Les