Don't want to waste time adding/deleting users manually ? Enable self registration
and let new users do the hard work for you! Read more
How do I upgrade from a previous version overwriting the old one ?
Basically, you will need to do the following:
1. Download and extract the contents of the .tar.gz file into the same directory as where AmpJuke currently is installed.
2. Point your browser to http://your-server/ampjuke-directory/
3. Follow the on-screen directions, by selecting "Upgrade..."