Adding a milestone to your Facebook Fan Page isn’t as easy as it you to be!
You now have to click the “Publishing Tools” at the top of your page. Be sure you are already signed in and ADMIN of your Facebook Fan page. If you aren’t you won’t be able to see it.
Once you are in the Publishing Tools Section, you should be on Published Posts. Click the +Create button over on the right hand side.
A window will pop up. Click on ..Products, Offer +
Then click on Add a milestone to your Page. See picture below: