couple of questions about TamiyaCon

hey guys,

I live in california so i am relativley close to Tamiya Con and My Mom, said She could probably take me. i have a couple of questions though:
1. I build lots of dios but so far they have only included one vehicle. But For my next dio I plan to have multiple vehcles. So do they judge all of the models, or do they judge one of them, or do they only judge the dio, not the models?

2. Do they have a Jr. Catagory?

thanks!