Multiplayer was disabled from these games, due to GameSpy that supplied the servers for multiplayer getting switched off. There is a workaround for this by using GameRanger to play Multiplayer. You can download this from here - http://www.gameranger.com/

When Playing over GameRanger you amy need to set your network speed to an higher parameter in GameRanger:
Edit -> Options -> Network -> Connection Speed (set higher parameter).