Thank you so much for your reply! Believe it or not, I actually managed to figure it out on my own. It's amazing how just "playing" on a site can help you learn how to use it. I was able to answer all my own questions and fix what I wanted to fix. I had added additional categories, and I thought if I stuck with it I might be able to figure out what I wanted to do.
I'm so glad you took the time to answer my questions; had I not been able to figure it out, the answer was right here waiting for me.
I really appreciate the time you took to answer my questions.