This Just In: 2011 Bonnaroo Noob Asks Questions

I am going to be a first timer this year. I'm 20-years-old and this will be my first festival. I have a bunch of questions and hopefully you guys won't mind answering them.

Alcohol
I am planning on carrying beer from MS to Bonnaroo because I'm only 20. I am, however, traveling with people who will be 21+.

a) What are all the means of getting beer once on the grounds?
b) Once you go into Centeroo, do they ID for beer? I've read you can't carry beer into this area but I would like to drink. I don't want to have to hassle the 21+ year olds, risk getting separated, etc.
c) If I do end up buying early and traveling with the beer, is my vehicle going to be searched entering Bonnaroo? Are they going to take my beer away since I am only 20? I've read TN police look out for people headed to Bonnaroo, but if I am cautious and keep it stowed away underneath a seat or something, are they likely to search my vehicle?
d) My girlfriend, who is also 20, doesn't drink beer. She loves liquor though. How should I go about that?

Tobacco

a) Are there any places you're not allowed to smoke?
b) Are cigarettes sold on the grounds?

Camping
I've only camped out at night time with no bad weather so I'm not even smart with this. I figured me and my girlfriend could buy a two person tent but I have no idea about brands and sizes.

a) Can anyone recommend a 2-person tent that is weather-proof but not expensive... between $100 and $200, if that's possible.
b) How can you run a fan without the use of a generator?
c) What else is essential? I read about putting something else over the tent (can't remember the name)... is this what people talk about? www.dreamlandbouncers.com/images/canopy1_web.jpg
d) Can anyone post a pic of the 'average' tent?
e) Is the campgrounds from Centeroo a long walk?

Vehicles

a) Is there a set time everyone has to leave the grounds by?

These are all the questions I have right now... will probably continue to post more. Thank you so much.