Today morning I was looking for an easy step by step guide to install SQL 2005 cluster on Windows 2003. My search landed me to one of Brad’s article describing the installation process very easily with screen prints. This article also includes the recommended tests to be performed on the cluster before using it in real life.
So if you are looking for a documented guide to install SQL 2005 cluster on a Windows 2003 OS, you should visit here. (URL: http://www.sql-server-performance.com/articles/clustering/cluster_sql_server_2005_p1.aspx)