I would like to know if its possible to hide the administrators name at the top right corner.

Also if its possible to make the 2nd top line invisible too. I know there is a section in administrator that let's you add the color of choice but wondering if it's possible to use CSS to make it invisible so that only "online:..." wording appears.

For the categories can you make categories private as well. Also is it possible to put spaces between categories.

This is my first time making a forum so any help would be much appreciated.