You'll have to contact the people who manage the project. All you would normally do is grab a copy of the project files, make you changes, compile it, debug it, and your done. Exactly how you compile the project would be spelled out in the project's documentation.
A guide to posting questions on CodeProject[^]
Dave Kreskowiak Microsoft MVP Visual Developer - Visual Basic
2006, 2007, 2008
But no longer in 2009...