sciencefiction wrote: Is it possible to make CB content module display tabs and or fields to public? Or does it only show stuff to logged in users?

You can use CB substitutions in CB content module to grab CB items from specific user profiles.

See Kyle's tutorials here for substitutions:
www.allmysocials.com/

However, if you are trying to display something that is not really viewable for public (example its on a non public tab or its protected by privacy plugin), then you will bot be able to show it.