Glad you got it sorted Sharon.
But in case it comes back, or you get any problem with yahoo account, you can contact "Yahoo Mail Customer Care". Here it is:
http://help.yahoo.com/help/us/mail/That will guide you to a page where you can write the principal word/words of your problem., for instance:
"Address Book", or any related words to it.
It will give you several cases. If your case is not included, you can check the fild "Not Even Close" (to the right side). Then it'll open you a window to send them your question.
I tried that for you and got
THISSo, you can fill it as you like to tell them your problem.
Hope that helps.