Your questions may already be answered in our (updated) FAQ
 

we have a Hulla FAQ online

http://www.hulla.info/faq.php

which will cover a lot of your questions. I also just updated a bit of it and added a few more questions:

I'm a parent, should I let my son/daughter attend?
Where can I buy tickets?
Do you have any tips for coming up from the States?
I'm a promoter and want to promote at your event

I wrote the faq so it would be easy to understand for any sort of outsider (ie: parent).