SQL Server 2005 - bunch of SSIS issues
There has been lot of issues with SSIS packages since the release of SQL Server 2005 and few of them were corrected in Service pack releases. Still there are few existing on SQL 2005 editions creating issues when a script task or a script component that may not run correctly when you run an SSIS package in SQL Server 2005 builds 1399, 1500, 2047 & 2153 and later builds.
Here is the list of KBA (Knowledge Base) articles to fix these issues:
SQL Server Build 2047
SQL Server Build 2153
SQL Server Build 1399
SQL Server Build 1500
Another SSIS cross post on this site and BOL (your good old friend).