[CS3] Multiple people

I wanted to make a small game where your a box and you can move around in the place. The only problem is I want to make it so that other people can watch where my box is going, (basically watching me move the box)... Along with them moving their own box and I can see where it goes.

This is pretty much like a multiplayer game, but I don't know how I would go about doing that :-S...

The only way I could think of is... Connecting to a SQL database and getting the x and y of the other object and moving the box to that x and y on the other persons screen... Problem with that is wouldn't connecting to the SQL database at least 2 times person second cause a lot of server lag?

So idk T.T... any help?

you want to looking into Flash remoting or Flash comm server.