Well, I found and tried a plugin called default categories. It works and creates all the categories on all the blogs. Problem is it doesn't support sub-categories. So it shows them all as top level. So I uninstalled it.
I fixed the category heirarchy by putting all the subs back into the top levels. They didn't work. When a category was clicked it just reloaded the home page.
I went and deleted every single category. then recreated all 130+ categories. Still getting the same result. It reloads the home page.
What do I need to switch to make them work again?
Thanks,
Gene