sorry guys i found how to replace them now!!
i press up when on the chanel,then menu,then (6)enable move mode, then ok on the channel i want to move,then ok again when i got it to the end of the list,and replace sports2 with the irish one!!
BUT now skysports 4,5, skysports news, all gone!!!!!!!!!
this is deffo the end!! helllllllllllllllllllppppppppp