For those of you who are new to the world of blogs, a little helpful information (I am no expert though!).
First of all, the newest additions will always be at the top of the page, with everything in reverse chronological order. That makes things easy if you are reading regularly, but kind of annoying if not. When you check in, you might want to skim down to the first new (to you) post, then read them in chronological order.
Second, only the "most recent" posts will appear on the front page. For now, "most recent" includes everything, since Bart has not been posting very long. Older posts (more than a month old) will be removed from the front page but all are still accessible via the archive links on the right hand side. For example, you can see all of May's posts here whether they have expired off the front page or not.
You can comment on any post. To read existing comments or add your own, click on the "X comments" link at the bottom of a post. You can post anonymously or create a blogspot account if you wish. Unfortunately, all the comments get kind of tucked away in this way, so if you want to see comments to your comments, you'll have to do some clicking. Also, If you click on the timestamp at the bottom of a post, it shows you the post, on its own page, with any existing comments.