Whenever I click on Join a game on Multiplayer mode, everything seems to be emtpy. I find no servers to go on.
Did you try the Multiplayer options? You can set some filters like not show servers with no players and not show servers that have the max amount of players reached.
Let me ask you something... Is your copy cracked or not? In multiplayer options you must enter the serial number of the copy you own. If the game is cracked, you have little hope of succesfully entering a multiplayer game.