MouseListener HELP!

This is my first time trying to use mouselistener, unfortunately is not going well />. Everytime i click 15 units from the moving image it should change the current image to a new one and if i click again it would change it back, so the images would be alternating. I was able to ge the image to move but i'm so lost about changing them with mouselistener. My book does a poor job on this topic. BTW i have the main in another class, one that calls the contents of the moving class.

Any help would be appreciated.

import java.awt.*;
import java.awt.event.*;

import javax.swing.*;

public class Moving extends JPanel implements MouseListener
{
   private final int WIDTH = 300, HEIGHT = 100;
   private final int DELAY = 20, IMAGE_SIZE = 35;

   private ImageIcon image;
   private ImageIcon image2;
   private Timer timer;
   private int x, y, moveX, moveY;

   public Moving()
   {
      timer = new Timer(DELAY, new Moving());
      image = new ImageIcon ("oldface.gif");

      x = 0;
      y = 40;
      moveX = moveY = 3;

      setPreferredSize (new Dimension(WIDTH, HEIGHT));
      setBackground (Color.black);
      timer.start();
      addMouseListener(this);
      
   }
   

   public void paintComponent (Graphics page)
   {
      super.paintComponent (page);
      image.paintIcon (this, page, x, y);
      
   }


   private class ReboundListener implements ActionListener
   {
     
      public void actionPerformed (ActionEvent event)
      {
         x += moveX;
         y += moveY;

         if (x <= 0 || x >= WIDTH-IMAGE_SIZE)
            moveX = moveX * -1;

         if (y <= 0 || y >= HEIGHT-IMAGE_SIZE)
            moveY = moveY * -1;
    
         repaint();
      }
   }


public void mouseClicked(MouseEvent e) {
	// TODO Auto-generated method stub
	if(e.getX()==x+15)
	image2 = new ImageIcon ("newface.gif");
	repaint();
}

@Override
public void mouseEntered(MouseEvent e) {
	// TODO Auto-generated method stub
	
}

@Override
public void mouseExited(MouseEvent e) {
	// TODO Auto-generated method stub
	
}

@Override
public void mousePressed(MouseEvent e) {
	// TODO Auto-generated method stub
	
}

@Override
public void mouseReleased(MouseEvent e) {
	// TODO Auto-generated method stub
	
}
   
 

}