Java SE (Java Platform, Standard Edition)

Hey all, I've never made an applet before and I'm having a small problem. Basically, when I load my applet, the GUI comes up on a separate window (doesn't load within the applet window). Here's my code:

Here's the GUI class.

import java.awt.BorderLayout;
import java.io.File;
import java.util.Vector;

import javax.swing.DefaultComboBoxModel;

import javax.swing.DefaultListModel;
import javax.swing.JButton;
import javax.swing.JFileChooser;
import javax.swing.JList;
import javax.swing.JScrollPane;
import javax.swing.JTextField;
import javax.swing.JTextPane;
import javax.swing.ListModel;

import javax.swing.WindowConstants;
import javax.swing.SwingUtilities;


/**
* This code was edited or generated using CloudGarden's Jigloo
* SWT/Swing GUI Builder, which is free for non-commercial
* use. If Jigloo is being used commercially (ie, by a corporation,
* company or business for any purpose whatever) then you
* should purchase a license for each developer using Jigloo.
* Please visit www.cloudgarden.com for details.
* Use of Jigloo implies acceptance of these licensing terms.
* A COMMERCIAL LICENSE HAS NOT BEEN PURCHASED FOR
* THIS MACHINE, SO JIGLOO OR THIS CODE CANNOT BE USED
* LEGALLY FOR ANY CORPORATE OR COMMERCIAL PURPOSE.
*/
public class GUI extends javax.swing.JFrame {

	{
		//Set Look & Feel
		try {
			javax.swing.UIManager.setLookAndFeel("com.sun.java.swing.plaf.windows.WindowsLookAndFeel");
		} catch(Exception e) {
			e.printStackTrace();
		}
	}

	private JButton openB;
	private JButton oddsB;
	private JScrollPane jScrollPane1;
	private JList jList1;
	private JTextField fileText;
	private Vector<String> jList1Objects;

	/**
	* Auto-generated main method to display this JFrame
	*/
	/*public static void main(String[] args) {
		SwingUtilities.invokeLater(new Runnable() {
			public void run() {
				GUI inst = new GUI();
				inst.setLocationRelativeTo(null);
				inst.setVisible(true);
			}
		});
	}*/
	
	public GUI() {
		super();
		initGUI();
	}
	
	private void initGUI() {
		try {
			setDefaultCloseOperation(WindowConstants.DISPOSE_ON_CLOSE);
			getContentPane().setLayout(null);
			{
				//Text field for file entry
				fileText = new JTextField();
				getContentPane().add(fileText);
				fileText.setBounds(0, 0, 279, 25);
				
				//Scroll Pane and jList1
				jScrollPane1 = new JScrollPane();
				getContentPane().add(jScrollPane1);
				jScrollPane1.setBounds(0, 25, 150, 328);
				{
					jList1Objects = new Vector<String>();
					jList1 = new JList(jList1Objects);
					jScrollPane1.setViewportView(jList1);
				}

				//Open button and Odds button
				openB = new JButton();
				oddsB = new JButton();
				getContentPane().add(oddsB);
				getContentPane().add(openB);
				oddsB.setText("Calculate Odds");
				oddsB.setBounds(679, 109, 105, 353);
				openB.setText("Open File");
				openB.setBounds(279, 0, 99, 25);
				
				//Open Button action
				openB.addActionListener(new java.awt.event.ActionListener() {
					public void actionPerformed(java.awt.event.ActionEvent evt) {
						
						//Opens up hand history file to be read in
						JFileChooser fc = new JFileChooser();
						fc.setCurrentDirectory(new File("C:\\Program Files\\Full Tilt Poker\\HandHistory"));
						int returnVal = fc.showOpenDialog(getContentPane());	
						if(returnVal == JFileChooser.APPROVE_OPTION) {
							//Display file in text box
							fileText.setText(fc.getSelectedFile().toString());
							
							//TODO: Write function to read in file and add all Hands to jList1
							//Recompile jList1
							jList1Objects = new Vector<String>();
							jList1Objects.add(fc.getSelectedFile().toString());
							jList1 = new JList(jList1Objects);
							jScrollPane1.setViewportView(jList1);
						}	
					}
				});
			}
			pack();
			setSize(800, 800);
		} catch (Exception e) {
			e.printStackTrace();
		}
	}

}

Here's the class my HTML file calls:

import java.applet.Applet;

import javax.swing.JFrame;

public class Main extends Applet{
	//Mainframe
	//JFrame f = new JFrame();
	
	public void init() {
		GUI inst = new GUI();
		inst.setLocationRelativeTo(null);
		inst.setVisible(true);
		//f.setContentPane(inst.getContentPane());
	}
	public void start() {
        System.out.println("Starting...");
	}
  public void stop() {
        System.out.println("Stopping...");
  	}

}