Just as a reminder as I was asked during the weekend, older posts are viewable a couple of ways: By clicking on the categories on the Right lists all the posts in a particular category, clicking on tags under the posts lists all the posts with those tags. The latest 9 posts or so are shown on the Left, the Archives are clickable with a dropdown link on the right a month at a time and you can also access the posts by date using the calendar which also lets you go back a month at a time as well (under the Ads), holding the mouse over a date lists the posts (If any) for that date.
Finally if all else fails do a search using the search box on the Right.
Now surely ye can handle one of the above ways to get at a post if you need to 🙂