how To use protect contains ?

hi, how to use content protect ?

because i want protect page. But another page can view as public .. then i create content protect but all page cannot view as public. ? why that are picture :-

http://awesomescreenshot.com/0d114unj5c

and how to use this part ??

http://awesomescreenshot.com/0ee14unve1

Please Help me ….