Trying to give something back to the Community...
The latest version of the downloadable ConfigMgr Documentation (which includes the updates for R3), is now available from:
http://www.microsoft.com/downloads/en/details.aspx?FamilyID=71816b0f-de06-40e0-bce7-ad4b1e4377bb&displaylang=en
Read the complete post at http://wmug.co.uk/blogs/cliffs_blog/archive/2010/11/04/configmgr-2007-latest-version-of-the-configuration-manager-2007-help-file-update-wizard-available-for-download-includes-r3.aspx