Please read it

The game posts 4 variables to hscore.php:

• $HTTP_POST_VARS["a"]
• $HTTP_POST_VARS["b"]
• $HTTP_POST_VARS["c"]
• $HTTP_POST_VARS["d"]

Calc score as score=a+b-2*c

Calc framerate as framerate=a-c

You need d to validate input: d=7*framerate+3*score

How to store scores, show highscores table and track/register users - it's your business. Usually it makes with cookies - your user login, you give him session ID in cookies. When flash posts a score you check the session ID and process the score.

BR. Your Ghost