• Microsoft Provided a detailed explanation on Migrating DTS packages to Integration Services in MSDN Site...

    http://msdn.microsoft.com/en-us/library/cc768544%28v=sql.100%29.aspx

    Also check...

    http://www.mssqltips.com/sqlservertip/1224/upgrade-sql-server-dts-packages-to-integration-services-packages/