Okay, I found out what the problem was. I had bookmarked that page when I started coming here over a year ago, but instead of being taken to that page my browser would take me to the orange "Let Me In" page.
Last night when I came in through the Let Me In, all that I found were pull-downs and the site news. I was still able to search for new stories by having the Library arrange all stories in reverse chronological order, but couldn't find any way to search for recently updated stories.
I entered Jinn's new bookmark and it took me where I wanted to go, so the "Site Update" page still exists, but when I just tried going in through "Let Me In" again, Site Update doesn't appear on any of the pull-downs. That's because you have to pull down "Story News", which doesn't take you to a story news page, it takes you to the Site Update page.
I understand it now, but it seems unnecessarily complicated. Thanks Jinn. I'll erase my old bookmark and use the new one.