I just used the undead patch version 3.0 and it worked. But the problem is that i cant download the freaking games. It just say: "The Steam servers are currently too busy to handle your request . Please try again in a few minute." Please help
there is no fix for this. The only thing you can do is download the latest GCF files from the GCF section and place them in yoru steamapps folder( program files>steam>steamapps). Then launch then with undead.