Sure it does do that, as in the instructions should pop up before the player gets to the game whatever route they take, but a lot of people just click skip or play strait away without reading, i imagine that is what you ment dishmoth?
in a nutshell, a record of each game is kept on the server when the game starts, the gameplay info from the client is serialised and sent over a standard HTTP connection, and then verified aginst the initial game orientation, so really it's not the scores that are being passed back but the gameplay, so packetsniffing will be of no avail unless you can replace the info with legal gameplay info, which you could falsify by picking apart the code and plugging a load more code into it, but it would be a lot of work, it would be a LOT easier to obtain the high score by playing the game

There are a couple of other small things too but i might keep them as my trade secrets, but ive described the main stuff there.
Ta
rackham