How do I set up and play Crysis 2 Multiplayer Demo?

I downloaded it, tryed to join a match, then it says 0 servers available, I then try to add my own by connecting my IP, and again it still says 0 servers. I just want to play the damn game Do I have to be online or something? How do I play this thing?How do I set up and play Crysis 2 Multiplayer Demo?
i think the multi-player demo has finished hence no servers is available



crysis 2 campaign is brilliant probably the best fps campaign there is, and i have played a few but the multi-player is just a heap of crap, when you doing a melee attack its looks like your doing a chicken impression and its more powerful than 2 bullets from a shotgun at close range,, lol