Amanda,
Thank you for your reply. I suppose this is just an idea. Have you tried it and it worked? Is this how it is supposed to be done?
If it is possible to move categories and the links in those categories, I would rather start with fewer categories. Well, if someone has done it already I would like to know. Acually I do not have a need for this now. But for the directory I plan to create, I am sure I will have to do this down the road and so do others. I just could not stop my paranoid, perfectionist mind from wandering in to the future.