Вообщето можно найти в хелпе
sendAndLoad (LoadVars.sendAndLoad method)
public sendAndLoad(url:String, target:Object, [method:String]) : Boolean
Posts variables in the my_lv object to the specified URL. The server response is downloaded, parsed as variable data, and the resulting variables are placed in the target object.
Variables are posted in the same manner as LoadVars.send(). Variables are downloaded into target in the same manner as LoadVars.load().
var submitListener:Object = new Object();
submitListener.click = function(evt:Object) {
var result_lv:LoadVars = new LoadVars();
result_lv.onLoad = function(success:Boolean) {
if (success) {
result_ta.text = result_lv.welcomeMessage;
} else {
result_ta.text = "Error connecting to server.";
}
};
var send_lv:LoadVars = new LoadVars();
send_lv.name = name_ti.text;
send_lv.sendAndLoad("http://www.flash-mx.com/mm/greeting.cfm", result_lv, "POST");
};
submit_button.addEventListener("click", submitListener);