Probably you'll get wondered why your posts and pages are public on Front-End after you Restricted them.
The reason is that now Restriction splits on Front-End and Back-End.
You can do two things:
1. Go and check Restrict Front for each restricted page or post;
2. Install this Plugin - http://whimba.com/download/plugins/aam-upgrader.zip. It'll do that automatically. After plugin activation, you can deactivate and delete it.