Arduino chattin' to flash.

Projects Interfacing w/ Software on the Computer
1

Hello. I have managed to get flash to talk to my arduino using serproxy. Now I need to get my arduino to talk to flash.
I have tried using the Serial.write(); arduino command to broadcast when a button has been pressed on the arduino. Now I need to get flash to read this command.
How would I go about doing this?
This Is the code I have so far for both arduino and flash.

Arduino:

const int buttonPin = 2;     // the number of the pushbutton pin
const int ledPin =  13;      // the number of the LED pin

// variables will change:
int buttonState = 0;  


void setup() {
  // initialize the LED pin as an output:
  pinMode(ledPin, OUTPUT);      
  // initialize the pushbutton pin as an input:
  pinMode(buttonPin, INPUT);  
  Serial.begin(9600);
  
}

void loop(){
  // read the state of the pushbutton value:
  buttonState = digitalRead(buttonPin);

  // check if the pushbutton is pressed.
  // if it is, the buttonState is HIGH:
  if (buttonState == HIGH) {     
    // turn LED on:    
    digitalWrite(ledPin, HIGH); 
    Serial.write("A") ;
  } 
  else {
    // turn LED off:
    digitalWrite(ledPin, LOW); 
    Serial.write("B");
  }
}

Flash As3:

import flash.net.Socket;
import flash.events.*;
import flash.utils.ByteArray;







var socket:Socket = new Socket("127.0.0.1", 5331);


var socketholder = socket.readUTFBytes(socket.bytesAvailable);



socket.addEventListener( ProgressEvent.SOCKET_DATA, dataReceived );



function dataReceived ( pEvt:ProgressEvent ):void
{
	
	if (socketholder == "A"){
		trace("wehey!");
	}

}


button.addEventListener(MouseEvent.CLICK, turn_on);

function turn_on(event:MouseEvent):void{
	
	if (socketholder == "B"){
		trace("also wehey!");
}
}

Thank you in advance for any help which may be given.
Danny.