Long time no see!
There are 21 different projects with source files. http://tapegerm.com/projectslist -- you'll need to be logged in to access them. Usually the files are available right on each project page. Sometimes they're found offsite, depending on how whoever's creating project chooses to do it. The Audio Bomb projects are eventually collected and put on archive.org (see the June Audio Bomb project). Those are ad hoc projects where anyone can add sources to them (just add to the thread).