Trying to give something back to the Community...
In his latest Screencast Jason Lewis looks at how to revise an update in SCUP:
http://blogs.technet.com/jasonlewis/archive/2009/05/26/screencast-system-center-updates-publisher-revising-an-update.aspx
Read the complete post at http://wmug.co.uk/blogs/cliffs_blog/archive/2009/05/27/configmgr-screencast-system-center-updates-publisher-revising-an-update.aspx