If you think you or an employee should be able to unlock the page (you've unlocked it before, or been told you have permissions, read on.) If you're unsure about permissions, please go to this article.
Don't panic: this is the #1 question we get. You're on the public page, not the actual page.
There are three ways to get to the real, root level page.
The Hard Way: Find it in the Navigation
Open up My Workgroups, find the Workgroup the page lives in, and find the page.
The Easy Way: Find it in Public Pages and Right-Click
Open up Public Pages, find the Page, and right click it. Choose Edit Workgroup Page.
The Cheaters Way: Change the URL in your browser
Look up at the browser. Delete ?LinkedFromPublic=True and press enter.