Hi Chigz!
Sometimes it can depend on the applicant's extra-curicular activities, positions of resp, work experience and interview/assessment day technique etc. Some candidates do manage to secure VS with 2.2 in their first year.
I was told by a Partner from BLP to secure high grades in my second year to show that I had excelled and that I can pull out good grades. In my first year I got a 2.2 (57%) and in my second year I got a few Firsts and averaged a high 2.1 overall.
I applied to a few firms for VS's and got short-listed by Capsticks and Beachcroft. This shows that a 2.2 in your first year is not the end of the world. Although you do need to demonstrate other qualities that show that you're a good candidate.
However, as you've probably read in the forum, some law firms filter applications and therefore if you haven't recieved a 2.1 in your first year you will not be considered by them.
Good luck with it all!