Strictlydating, if i understand you correctly, you want to hide some of your profile settings from the general public. I think you need to do the following:
Goto the Upper Right hand corner and select Account
Click on Privacy Settings
Click on Profile Information
The Profile Information screen appears and you can change individual pieces of information such as About Me, Birthday, Family and Relationship. From these options you can select Only Friends, Friends of Friends or Everyone. Hope this helps and is what your looking for.