I kind of cheated today. I was on one computer and had to go to my laptop and no one had posted on the thread I was so caught up in, but I had noticed one of the most frequent posters on that thread, looked on what was in the unread posts, found one she had started, clicked on her then clicked on her posts, found a post of hers on the thread I wanted to get back to, and Bingo!, got back to my thread and remembered where I had left off.
I am so glad for the way the forum works, but will be glad to see if the search is back next Friday. I am spoiled.
Thanks for the information, Ehelldame.