That's a 2007 in Large/XL.
VIP Frame, so it was a custom build.
at 5ft 8", the small/med may be better, the Large/XL is a bit tall for someone your height. I am 5ft11", and i have to run my seat all the way down to the clamp to get enough standover for DH use.
the 2008 looks like this.. (Mine)
http://www.pinkbike.com/photo/5028243/ and that's the L/XL size, so you can see that the frames are the same size (Look at the amount of seat tube above the shock hole in the front triangle Smalls look like this..
http://www.pinkbike.com/photo/4569009/ ) T