hello my name is shatta22 i'm new to the online game mode,i would like to play a game or if u all want to,add me shatta22

Cool, I would love to play an online game.  I just bought the game yesterday and have been playing it.

I am curious though.  I have no updated the game, and I do not have the expansion.  Do most people have the expansion when playing the game online, or is it required?

Also - I assume you have to have the most updated version to play online, right?

Standontoilets is the name.

Yes, you need the most updated versions.  You need version 1.181 for regular Sins and 1.041 for Entrenchment.  To update, you need to install Impulse and register an account and your game's CD key.  You can find it there:  http://www.ImpulseDriven.com

I am a total multiplayer newbie to sins.  I just installed Diplomacy, and I really, really want to get some awesome sins games going. 

I logged on and was saddened by the lack of players.  So...

Everyone, PLEASE ADD ME! My ICO username is foundmonster.

It also looks like the lobbies are still split between diplomacy and Vanilla/Entrenchment. So you will need to log into ICO with Entrenchment to see those games.