My site's vanishing posts

I recently added an article from the ezines articles website, and after doing so, and activating it, it didn’t show up on my blog, as other posts would have done. Then I tried to un-publish it, and the posts I had before just wasn’t visible. It’s like they vanished.

I checked to see if all my posts are still published, they are, so this really confuses me. If someone can please go to http://www.tflaa.com/blog to take a look, and possibly give me some suggestions, I would greatly appreciate it.