1st There is a manual..
2nd if u cant be f*** then read this
Start GTA MTA go into the game till u see loading screen...
ALT+Tab to go the the Multi Theft Auto Box type in ur Ip for the server u want to join to and ur nick and ur version and ur Connection Speed then Connect.
Then Press "Send Game Request" go back into the game and there u go!
If this doesnt make sense to u then find a tall buiding to jump off...
Also this kind of post most likley has been posted b4