!!! Everyone who wants to multi should know how to multi !!!Click Here
The most important part of that is registering a pilot on fs2.net. You don't need to do step #2 that's for hosting.
If you are still confused you can ask for help on the multi setup channel
Once you're setup, go on IRC
to ask if anyone is interested in playing a game. Don't go directly to the game itself, people usually don't hang around there. Weekends are best, but you can certainly try anytime.
Aah! I know there's more of you out there! You will all be educated!!!
Edit: Oh and I like the Loki... that's right... I said it.