Not forms as such but quite a few things to do: Departmental registration, internet access, collecting pre-booked tickets, accomodation forms, medical registration.
But it's all part of the excitement of finding your way around and meeting people by making conversation while sat in queues for hours!
Activity-wise, the events this year included:
Fresh - End of Freshers' semi-formal dance type thing.
Viking Raid - Huge bar crawl in town.
Comedy Night
Aloha - Beach themed party
Access All Areas - First night, every college putting on a different themed night in their bars.
Those were the Uni wide ones, but each college has things going on most nights, be it bar crawls or whatever.
I had an awesome time. Most of the fun is just in the getting settled in and hanging out meeting people - even if there weren't any events at all I think I'd still have enjoyed it, generally just a great atmosphere for two weeks.