Like Billy Pilgrim, this blog has suddenly become unstuck in time. At the bottom of the first page, there's a link that says "Older Posts" which should take you back to the post from immediately before the last post on Page 1 here. In most cases, it will. Sometimes, it leaps back a day or two.
On my main computer at the moment, it works fine in Firefox but leaps back a few days when I browse the same material in Internet Explorer. One or two other people have reported the problem no matter what browser they use. On my secondary computer, it works fine in any browser.
I have no way of repairing this but am reporting it to folks who might. In the meantime, here's the workaround. When you get to the bottom of Page 1 and want to read the item before it, click on the subject line of the last message at the bottom of Page 1. That will take you to an individual page for that item. Use the links at the bottom of that page to move back to the item before it and then the item before that one and the item before that one, etc.
I apologize for the inconvenience. I expect it will be fixed one of these days.