Microsoft has released the April 2006 version of the Microsoft SQL Server 2005 Upgrade Advisor
Microsoft SQL Server 2005 Upgrade Advisor analyzes instances of SQL Server 7.0 and SQL Server 2000 in preparation for upgrading to SQL Server 2005. Upgrade Advisor identifies feature and configuration changes that might affect your upgrade, and it provides links to documentation that describes each identified issue and how to resolve it.Microsoft SQL Server 2005 Upgrade Advisor