How can I replace the legend name with the name that i want?

How can i change the name of the legend into he name i want? I tried to to go to users and group>group administration>then change the name of the administrator and the moderator. But when i finish it, and look in my static area. I still see the word Administrator not the word Pokemon Master and the same too with my moderator in the legends name. How can I totally changed it up? Need help. This is a very serious one that need to be solved.

You have to make a new group "Pokemon Master", color it as you please, and give it admin privs. Then you have to make the original admin group HIDDEN so it will not appear.

Groups show by number. Number one is the admin group, so that will always appear for someone in that group even if they belong to another group of a lower number. So you make it hidden and it won't appear.

Nothing happen when i try to do what you have said to me.
Is there anyone out there can help me with my problem?
Do reply.
Thank You