I found the following blogs very useful. I would recommend you to look into these blogs for guidance if you are struck some where in development. If you dont find any clues then post your questions in the microsoft ssis forum, where again these people are really active and you are assured of some directions.
Jamie Thomson - http://blogs.conchango.com/jamiethomson/default.aspx
John Welch - http://agilebi.com/cs/blogs/jwelch/default.aspx
Phil Brammer - http://www.ssistalk.com/
Darren Green- http://www.sqlis.com/
Matthew Roche - http://bi-polar23.blogspot.com/
Rafael Salas - http://www.rafael-salas.blogspot.com/
Microsoft SSIS forum - http://forums.microsoft.com/MSDN/ShowForum.aspx?ForumID=80&SiteID=1
