This procedure will load your image for you.

Code:
  private Image loadImage(String ImageName)
  {
    Image image = null;
		Toolkit toolkit = Toolkit.getDefaultToolkit();
		image = toolkit.getImage(ImageName);
		MediaTracker mediaTracker = new MediaTracker(this);
		mediaTracker.addImage(image, 0);
		try
		{
			mediaTracker.waitForID(0);
		}
		catch (InterruptedException ie)
		{
			System.err.println(ie);
			System.exit(1);
		}
    return image;
  }
To display it on a Panel, you'll need to create a paint method for the panel similar to this.

Code:
public void paint(Graphics graphics) {
    super.paintComponents (graphics);
           graphics.drawImage(loadImage("Hello.gif"), 140, 330, null);