"rganisers said the star, who won the Isle of Man TT 11 times before retiring through injury in 1998, has been double-booked and will not be appearing at the event.Ron Maund, show organiser, admitted the news was a disappointment but said there will be plenty of attractions on the day.The event is celebrating its 20th anniversary and Mr Maund said they still hoped to attract a big name to mark th" . . . .