4. Play the game. We recommend playing it offline.
If this procedure fails, be sure to remove everything before trying again.
Look at the official website for a FAQ regarding the activation data, if
you are having trouble removing that.
If you already started game once without blocking from firewall, then you will have to uninstall and install again.
After uninstall, delete the C:\Documents and Settings\**YOURUSERNAME**\Application Data\Sports Interactive and C:\Documents and Settings\All Users\Application Data\Sports Interactive folders and install after that offline.