JFace getting started

Hi

I try to run a simple SWT/Jface example. I am running this from inside
eclipse 3.2.0 and I have included the following in my classpath:
swt.jar - Taken from swt-3.3M3-win32-win32-x86.zip
jface.jar - Taken from program files\eclipse\plugins and Renamed from

org.eclipse.jface_3.2.0.I20060605-1400.jar

Here is the class:

import org.eclipse.jface.window.*;
import org.eclipse.swt.widgets.*;

public class MyJFaceExample1 extends Window {

    public MyJFaceExample1() {
// super(null); //Wont compile with null as the beginner example says
it should
        super(new Shell()); //Compiles
    }

    public static void main(String[] args) {
        MyJFaceExample1 demo = new MyJFaceExample1();
        demo.setBlockOnOpen(true);
        demo.open();
        Display.getCurrent().dispose();
    }

------------------------------------------------------------

This compiles fine but when I try to run this I get:
java.lang.NoClassDefFoundError:
org/eclipse/core/commands/common/EventManager

I then copy c:\program
files\eclipse\plugins\org.eclipse.core.commands_3.2.0.I20060605-1400.jar
and rename it to core.jar.

I then get the following error: java.lang.NoClassDefFoundError:
org/eclipse/core/runtime/ListenerList

Then I am stuck.

Please help me with getting started with JFace.