Ok for SFC 2 Empires at War :
go to announcements section of this forum... look for the v2002-2036 patch (latest and final version)
to play online.. for Dynaverse II, launch game click Multiplayer, Click Dynaverse II
Fill out player info (must have a gamespy Arcade account)
click join, pick a server and read the description (server may require additional download)
join server and have fun.
for Gamespy Arcade : ( 1 vs 1 head up action, non campaign)
Download Gamespy Arcade using this link
http://www.gamespyarcade.com/download/dlwindow.shtmlThen log in with your account.... if you do not have an account, create one for free (this same account is used for Dynaverse 2)
go to Empires at War lobby using the game icon onthe left column.. make or pick a room... and with other people, click Ready at the top and if you are hosting.. click launch.. if others are hosting.. enjoy the ride...
for SFC 2 Orion Pirates...
go to announcements section and find the 2500-2552 patch
the instructions for online play are same for Empires at War above.
hope tht this helps...
P.S. these patches go on a clean install of SFC out of box and are not to be used with any other patches or mods on the game.