There are a few reasons why you might not see posts on this friends page:

• Area Display might have no friends defined. If you are Area Display, you can edit your Blurty friends so they show up here.
• Area Display might have friends defined, but all of their friend's posts might be over two weeks old (according to the times on our servers), and thus wouldn't be displayed here.
• Area Display might have friends defined that post only protected entries that you can't view, because they haven't defined you as a friend in return.