Step by step: How to install exchange 2003 cluster part I

I will be using M$ virtual server 2005 R2, you can download it from M$ for free.
http://www.microsoft.com/windowsserversystem/virtualserver/default.mspx

The machine will hold the guest machines, will need lots of memory.
If you are going to do all the steps below, you will need windows 2003 R2 Ent & 5+ GB memory at least
If you are going to do skip step 6 and 7, you will need windows 2003 R2 STD & 4GB memory at least.
100G+ HDD is also needed.

This is what we are going to do.

- Install and setup M$ virtual server 2005 R2.
- Build a Windows 2003 R2 standard.
- Copy and use the Windows 2003 R2 Std to build a Windows domain controller.
- Build a Windows 2003 R2 Ent.
- Copy and use the Windows 2003 R2 Ent to build two node exchange 2003 back-end clusters.
- Copy and use the Windows 2003 R2 Std to build a exchange Network Load Balanced front end server. (optional)
- How to apply service packs / patches.
- Simulate a node failure and recovery.
- Simulate a network failure and recovery.
- How to add more than 2 nodes.
- Simulate a quorum disk failure and recovery.