Does anyone know when tickets go on sale for Hank Jr and Lynyrd Skynyrd in Dayton, Ohio?

Specifically for the May 11, 2007 show at the Nutter Center? And PLEASE don't tell me to go to ticketmaster or one of their websites...I've already been to all 3, and can't find an onsale date. I know that the Indianapolis show goes on sale Wed, so I'd think it'd be soon....