Flash couldn't save the data by itself, need some scripting lenguage (php, asp, jsp ...)
So usually, Flash call a script and pass the data to it, something like:
loadVariables("saveScript.php", "dumyMC", POST);
You could use also loadVars(). In this example, I don't want to load any variables, only store, but loadVariables call my script (that's what I want), and returns nothing, so my dummyMC is out of stage and do nothing.
If you don't know about back-end scripting, take a look in the backend Forum