The 6th Annual Montana Beer Festival is taking place tomorrow, April 13, 2012, at the Gallatin County Fairgrounds in Bozeman, MT.  Some 33+ breweries taking part in the event which runs from 6:30 p.m. to 10:00 p.m. Tickets are $30 and get you unlimited tastes during the festival. V.I.P. tickets are available for $50 which…