I finally got around to trying to figure out where my archives went. I went to the help group for Blogger and did a search and found someone with the same problem. The answer was:
But you are a very old time blogger user, using the very old archive method, which is no longer available on New Blogger. They stopped letting new users use it over 2 years ago, but you were allowed time to transition. It's time!So that is why I have a new template, though I tried to keep it somewhat like the old. I don't have time to try to figure out how to put all the pieces back--figuring out html code takes me a long time and the page element editor doesn't work very well.