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

• Updates and other Shit might have no friends defined. If you are Updates and other Shit, you can edit your DeadJournal friends so they show up here.
• Updates and other Shit 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.
• Updates and other Shit 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.