I've put the same variable name with the same content all over the flash movie, even inside the on(release).
Then I go:
on (release) {
var picho:String = "hola";
getURL("http://myurl/index.php", "GET");
}
Before that I used "_blank" in between, but I took it away as I read was causing problems to someone. Same thing:
The php script doesn't get anything, the address bar doesn't show any variables and I ran out of searching options for the solution.
This is a Flash 8 movie loaded into CS3.

Thanks for any suggestion.