Vans warped tour? help, urgenttt !!?

I want to get tickets to this concert mainly for The Ready Set...What tickets should I get? People are saying there isn't just one stage but the comcast center is an actual concert arena (is that whatd you call it?) Are there any ticket packages that include backstage passes to meet them? What comes in the VIP packages? Are there 'meet and greets' before/ after the concert & if so, how do you get to them? Any help is appreciated, thankyou!