There is now a promo code to enter that discounts the price from £55 down to £30 and allows you to submit a question for Steve. Just enter the code "ICMP" when ordering to recieve the discount and email your question to email@example.com with your name, question and booking reference.
That £30 INCLUDES the £10 entrance cost to the show, so if you were planning on going an extra £20 gets you in to Vai!
Tickets can be purchased via Guitar Nations website - http://www.guitarnation2010.com/
Full details on the event can be found at the ICMP's website