I just moved the Redwerb Visualizers project to CodePlex. If you want to download the visualizers, please head over there (Redwerb Visualizers on CodePlex). If you want to report any problems with the visualizer, please use the Issue Tracker on CodePlex.
This is my first CodePlex project. I was pretty happy that I could use my subversion client to access the source code. I purchased a license for VisualSVN (a Subversion client for Visual Studio) a while ago and really like it.
Another nice thing about CodePlex is that you can view the code without having to download it. You can even view the history of the code as well as differences between versions. It may not be as good as Beyond Compare, but it certainly is convenient.
I chose the Microsoft Public License (Ms-PL). This seems to be a simple, straight-forward, permissive license to allow people to use the code any way they want without having to worry about copyright infringement.