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I just bing'd SLD installation guidance and found these.
http://blogs.technet.com/b/jonathanalmquist/archive/2010/04/10/service-level-dashboard-2-0-installation-considerations-and-guidance-part-1.aspx
http://blogs.technet.com/b/jonathanalmquist/archive/2010/04/10/service-level-dashboard-2-0-installation-considerations-and-guidance-part-2.aspx
http://blogs.technet.com/b/jonathanalmquist/archive/2010/04/10/service-level-dashboard-2-0-an-error-has-occurred-view-the-logs-for-more-information.aspx