Version 4.5. Updated January 2011.
Version 4.4. Updated August 2010.
Version 4.3. Updated December 2009.
Version 4.2. Updated March 2009.
Version 4.1.1. Minor re-formatting for new on-line format March 2009.
Version 4.1. Updated July 2008.
Version 4.0. Updated September 2007.
Version 3.2. Updated July 2006.
Version 3.1. Updated January 2006.
Version 3. Updated February 2005.
Version 2.1. Updated August 2003.
Version 2. Major update published February 2003.
Version 1. First published September 2001 by DI Management Services Pty Limited.