if i remember correctly, the patch is still being installed even though it seems to have 'stopped'. i ended up waiting for around 2-3 minutes before the it says 'installation complete'. so i think you will have to wait as well and the im certain that it did not hangright I done what you said and added .exe then double clicked it tried to install it then it got to a bit and just stopped and wouldn't let me choose the button to continue just cancel and stop.
Ok Thanks it worked out but since I've downloaded this, It seems I can't be connected for network games does this have anything to do with the network connections. Even though I created the game before I downloaded this patch so shouldn't it still be Default database?