OK if u have installed it then open mirc up it should now be called invision there will be a yellow face icon on your desktop or menu once open , press the continue button .
Then go to tools - options , a box will open up click on the connect tab - in here enter your name and email
Then go to servers tab - irc network wants to be EFnet - irc server wants to be EFnet EU UK London
Then go to options tab and click on perform - in the white space put in this - /join #piraterevival - make sure the enable perform on connect is ticked .. press ok and ok again , then go to the red button on top left and click this should connect u , next time u open invison up just continue and press the red connect button ..