If the OSX version doesn't work for you ("Not found. Obtaining sources.."), here is how to fix it:
1. Download it into your ~/Downloads folder.
2. Open Terminal
3. Type: cd ~/Downloads/LIbraryOfBlabber_016_osx/LIbraryOfBlabber.app/Contents
4. Type: ln -s Data/* .
Now you can double-click it and it should run properly.