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

• Numb3rs Gen and Het Fan Fiction might have no friends defined. If you are Numb3rs Gen and Het Fan Fiction, you can edit your InsaneJournal friends so they show up here.
• Numb3rs Gen and Het Fan Fiction 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.
• Numb3rs Gen and Het Fan Fiction 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.