Administrators perform game world and website maintenance
actions, and generally clean up problems. They have privileged
access to the game world and the website, including a special
game applet which has more buttons than the regular player one.
There's not a strong need for Administrators in TC, and they
usually don't do much other than restart the game server.
But, they could if they needed to.
Administrator has no formal rolemaster. If you'd like
to be one, er, don't hold your breath. :-)