Shoutbox

I follow  the step that may73alliance wrote but always pop out a window says

use the /nick command

- type /nick
-goto the msgplus sign on the left of the convo window
-text colour formatting tag
-select colour
-type name
-press enter


''Sorry. This command is either not recognised or an error occurred during its processing. If the message was not supposed to be a command , please type a double'//' at its beginning.''

what can I do, help me out here , please ~~~~~