Note that the site says that online booking only offers a small selection of available seats - you need to phone the box office for a wider selection of tickets.
Also, the event is being held as a fund-raiser in aid of Junior Achievement Isle of Man’
Words of warning from Lee's website for anyone who has already booked:
"For those of you wondering why we have not announced the event on the Isle of Man which you may have seen advertised, this event has not yet been finalised and, whilst we sincerely hope it will be, please be aware of this if you are considering travelling to the show. The venue/promoters have jumped the gun before negotiations are complete and until contracts are in place (rather like buying a house) there is a risk to buying tickets."