Actually I had to go into the CMS and re-enter the URL so that it worked. This has always been a short term fix eventually it will go back to posting the most recent entry. The one thing that I did notice is that the URL seems to be changing every time I go back into the cms. Sometimes the developer's notes say to add this: ?messages=1
When the client contacts me to let me know that it isn't working again I notice that the developer's notes says to add this: ?messages=1001
So it seems that the original ?messages=1 isn't valid anymore.