Hi, I know most of your questions have probably been answered already but i thought i'd still reply with my thoughts, just in case they help you in anyway!
Firstly parking is pretty good, no matter which college you go to theres always plenty of space close by, obviously the earlier you arrive, the better!I would say its actually not that manic in my opinion and i moved in on a day where it was pouring it down with rain too! Since everyone is separated into colleges it makes everything a lot easier from picking up your keys, someone will show you to your building and usually your room and then let you get on with moving in.. so in my opinion nothing really to stress about!
Freshers, Grad, all years.. pretty much everyone will move in on that weekend, but again its split between colleges, thus a little less hectic than you'd think.
I've been there on the moving in weekend, as a student myself going into third year now, i think only hints/tips i could think of is, normally you'll go to the porters lodge or bar which ever you've been told by your college so try not to park too far out, as you can always move closer to your building when you know which one you'll be helping your daughter to move into. Also, although you'll probably know this, i would advise comfortable clothes and good footwear, as you never know you could end up being on the top floor, which is a lot of boxes etc to lug up flights of stairs.
Also, i would say when packing just try to divide your stuff up into like kitchen, bathroom and personal stuff, to make it easier and much quicker when unpacking.
An important one i would say is the inventory list that will be given to you, it makes it much easier to do this before you start unpacking, and will defiantly save you loosing your deposit is there was already marks etc on the wall.
As i said before parking is widely available as they'll only be 3/4 colleges moving in on the sunday and for many years as been free on the moving in weekend.
I can't remember the name properly i think it could be called blue moon or something along those line, which is a really nice thai restaurant.
Finally it is possible to get accommodation during second year on campus as long as you apply in good time, however many second years tend to choose to live in town within flats or houses as it sometimes works out cheaper. And as for third year, campus accommodation is made priority for third years as well as some other groups. As for how you go about applying for these your daughter will be notified of talks being held for each college explaining when and how to apply for the following years accommodation. I'd say you have a good chance of getting accommodation whether it be campus or off campus, and not to worry about that until the university sends out the emails/information for the talks which will normally be November/December.
Hope I was off some help and good luck with moving in!