Postings not showing up on permalinks

I've configured my blog (www.whatwechow.com) to show the most recent postings excepts on the front page, I am also using the "recent postings" widget.

When clicking on the "recent postings", regardless of title, the posting does not appear. The permalink page opens up, the tags are even there, but there isn't any post. This occurs when clicking on the "continue reading" link and it happens when I manually type in the permalink. Even from the dashboard "View Post" button, the posting is missing. Today, while trying to figure out this challenge, I did a new posting (Gingerbread). Even more mysteriously, I am not having this problem with THAT posting.

I've been struggling with this problem for days. At first I thought I was using a theme that wasn't updated to WP 2.8.6, so I switched to Atahualpa, but my problem remains. I am relatively new, so surely this is user error, but I can not figure it out. Any help would be greatly appreciated!