Java Swing is going everywhere but where its supposed to

I can seem to get my GUI to look the way I want it to, here is a pic of the GUI Im getting
http://www.81x.com/Authors/roadragedave/badgui.jpg

and here is a pic of what I want it to look like
http://www.81x.com/Authors/roadragedave/wanted%20gui.jpg

Here is the code::

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import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.event.WindowAdapter;
import java.awt.event.WindowEvent;
import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.*;
import java.awt.Rectangle;
import java.awt.Color;
import java.awt.Dimension;
import java.awt.event.*;
import java.beans.*;
import java.awt.BorderLayout;
import java.awt.GridLayout;

//import com.college.attempt.cpp;

//import com.emc.college.ProgramActionListener;

public class ProgramStartup extends JFrame
{
    private Window_actionAdapter my_actionListener = null;

    JPanel jPanel1             = new JPanel();
      JPanel buttonPanel       = new JPanel();
      JPanel checkPanel       = new JPanel();
      JPanel textPanel       = new JPanel();

    JLabel jLabel1 = new JLabel();
    JLabel jLabel2 = new JLabel();
    JLabel jLabel3 = new JLabel();

    JTextField jTextField1             = new JTextField();
    JTextField jTextField2             = new JTextField();
    JTextField jPasswordField1       = new JPasswordField();

    JLabel jTextPane1 = new JLabel();
    JCheckBox jCheckBox1 = new JCheckBox();
      JCheckBox jCheckBox2 = new JCheckBox();
      JCheckBox jCheckBox3 = new JCheckBox();
      JButton jButton1        = new JButton();
      JButton jButton2        = new JButton();

      public ProgramStartup ()
    {
        my_actionListener = new Window_actionAdapter();
        createGui();
    }

    private void createGui()
    {

        jPanel1.setBounds(new Rectangle());
        this.getContentPane().setLayout(new BorderLayout());
        this.setTitle("Guineyd WMI Application");
        this.setBounds(100, 100, 600, 400);
        this.setResizable(false);

        jLabel1.setText("Machine Name");
        jLabel1.setBounds(new Rectangle(144, 137, 89, 25));

        jLabel2.setText("Username");
        jLabel2.setBounds(new Rectangle(144, 196, 63, 23));
 
        jLabel3.setText("Password");
        jLabel3.setBounds(new Rectangle(425, 196, 66, 23));

        jTextField1.setPreferredSize(new Dimension(80, 21));
        jTextField1.setBounds(new Rectangle(144, 161, 382, 23));

        jTextField2.setPreferredSize(new Dimension(80, 21));
        jTextField2.setBounds(new Rectangle(144, 218, 112, 21));

        jPasswordField1.setPreferredSize(new Dimension(70, 21));
        jPasswordField1.setBounds(new Rectangle(425, 216, 98, 21));

        jTextPane1.setText("Please tick the values you wish to display");
        jTextPane1.setBounds(new Rectangle(44, 160, 238, 24));

        jCheckBox1.setText("Available Memory");
        jCheckBox1.setBounds(new Rectangle(44, 185, 118, 24));

        jCheckBox2.setText("Load Percentage");
        jCheckBox2.setBounds(new Rectangle(44, 210, 118, 24));

      jCheckBox3.setText("Available Disk Space");
      jCheckBox3.setBounds(new Rectangle(44, 235, 118, 24));

      jButton1.setBounds(new Rectangle(94, 277, 128, 30));
      jButton1.setText("Connect");
      jButton1.addActionListener(my_actionListener);
      jButton1.setActionCommand("CONNECT_CLICK");

      jButton2.setBounds(new Rectangle(255, 277, 128, 30));
      jButton2.setText("Cancel");
      jButton2.addActionListener(my_actionListener);
      jButton2.setActionCommand("CANCEL_CLICK");

      buttonPanel.add(jButton1, null);
      buttonPanel.add(jButton2, null);

      checkPanel.setLayout(new BorderLayout());
      checkPanel.setBounds(new Rectangle(100, 300, 250, 120));
      checkPanel.add(jTextPane1, BorderLayout.NORTH);
      checkPanel.add(jCheckBox1, BorderLayout.WEST);
      checkPanel.add(jCheckBox2, BorderLayout.WEST);
      checkPanel.add(jCheckBox3, BorderLayout.WEST);

      textPanel.setBounds(new Rectangle(100, 100, 471, 180));
      textPanel.add(jLabel1,                      null);
      textPanel.add(jTextField1,             null);
      textPanel.add(jLabel2,                      null);
      textPanel.add(jTextField2,             null);
      textPanel.add(jLabel3,                 null);
      textPanel.add(jPasswordField1,       null);

      this.getContentPane().add(buttonPanel, BorderLayout.SOUTH);
      this.getContentPane().add(checkPanel,  BorderLayout.CENTER);
      this.getContentPane().add(textPanel,   BorderLayout.NORTH);
    }

    public static void main (String [] args)
    {
        ProgramStartup thisWindow = new ProgramStartup();
        thisWindow.setVisible(true);

        thisWindow.addWindowListener(new WindowAdapter()
        {
            public void windowClosing(WindowEvent e)
            {
                System.exit(0);
            }
        });
    }

    // ----------------- ACTION LISTENER --------------------

    class Window_actionAdapter implements ActionListener
    {
        Window_actionAdapter()
        {
        }

        public void actionPerformed(ActionEvent e)
        {
            if(e.getActionCommand().equals("CANCEL_CLICK"))
            {
                // do the button stuff
                System.out.println("David says go home");
                System.exit(0);
            }
            else if(e.getActionCommand().equals("CONNECT_CLICK"))
            {
      JNIConnect jniConn = new JNIConnect();
      System.out.println("David is Cool");
      Login();

            }
        }
    }

    //------------------ CLASS OF VARIABLES -----------------

   class MachineDetails {
      String BSTRMachineName;
      String UserName;
      String PassWd;
      boolean AvailMemory;
      boolean LoadPercentage;
      boolean DiskSpaceFree;

   public MachineDetails(){
      String BSTRMachineName = null;
      String UserName = null;
      String PassWd   = null;
      boolean AvailMemory = false;
      boolean LoadPercentage = false;
      boolean DiskSpaceFree = false;
      }
   }

   public void Login(){
      MachineDetails dClass = new MachineDetails();
      //JNIConnect jniConn = new JNIConnect();

      dClass.BSTRMachineName = jTextField1.getText();
      dClass.UserName          = jTextField2.getText();
      dClass.PassWd                = jPasswordField1.getText();

      dClass.AvailMemory     = jCheckBox1.isSelected();
      dClass.LoadPercentage  = jCheckBox2.isSelected();
      dClass.DiskSpaceFree   = jCheckBox3.isSelected();

      driver(dClass);
    }

    public class JNIConnect{
      public JNIConnect()
      {
      try{
                                System.loadLibrary("guineyd");
      }
            catch(java.lang.UnsatisfiedLinkError e){
            System.out.println(e);
      }
      }

      }
       public native void driver(MachineDetails dClass) throws UnsatisfiedLinkError;;
}

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Im looking at the co-ordinates for each of the checkBoxes and I can understand why its ending up that way