Stan Kulp-439977 (10/18/2013)
http://ssisextensions.codeplex.com/
Here is the 2008 R2 version:
http://ssisextensions.codeplex.com/releases/view/101949
Here is the 2012 version:
http://ssisextensions.codeplex.com/releases/view/101332%5B/quote%5D
Let's make this easier for others:
You can use the open source SSIS SFTP custom task component from this project at CodePlex.com
http://ssisextensions.codeplex.com/
Here is the 2008 R2 version:
http://ssisextensions.codeplex.com/releases/view/101949
Here is the 2012 version: