The original author is ddl (thank you ddl!).
The source code has been uploaded by him to different places and forums but is now quite difficult to find.
I (spock26) have created this project in order to help the community to continue the great work done initially by ddl.
The different tools provided are:
a simple make should be enough...
The project is including the original README from ddl explaining the use of each tool
You can contact me at spock26xbox360tools@gmail.com