I suggest you got to > Dashboard > Pages > All Pages and hover over the Page then click "edit" and check the page visibility settings in the Publish module.
edit pages screen http://en.support.wordpress.com/pages/edit-pages-screen/
Troubleshooting – My Pages aren’t appearing
They must be public pages – not private.
Public – The page will be visible to everyone.
Protected – The page is protected with a password you set. Only people who have the password can view a protected page.
Private – Pages are only visible to blog Editors and Administrators. Private pages are not visible in Reader, feeds, or in any search. A page can be private without being password protected.