Buying Tickets for a Rocketown show?

I want to go to the The Artery Foundation Across The Nation 2011 Tour with Sleeping with Sirens, isetmyfriendsonfire, Of Mice and Men, Woe, Is Me and The Amity Affliction on March 25th at Rocketown Pompano and I was wondering how to get tickets. Do you buy them online, go to the venue, or buy them at the door? Can anyone help?