You can download the Troupetunes zip file at http://web.mit.edu/villalva/Public/troupetunes.zip
An updated version can be found at http://web.mit.edu/rmperez/Public/troupetunesUpdated.zip This version includes several features in spec but not implemented at the deadline. It also works on Athena and Mac OS X 10.6
The voting interface can be accessed at http://web.mit.edu/bhbaker/www/troupetunes.html
An open source project called Sockso already implements much of the backend music handling(ie maintaining a database of music, automatically encoding, and playback). It was designed for streaming music to other users. As such we decided to branch this project to add our features such as dynamic playlist editing in response to voting, and our substantially different interface. The original project can be found at http://sockso.pu-gh.com/