1. Download AmpJuke, extract the files in the "AmpJuke-x.x.x.tar.gz"-archive and - if you need to do so - use Filezilla or a simliar FTP-related program to transfer the contents to your webserver.
2. Open a browser and point it to:
http://www.your-server.com/ampjuke-directory/
3. Follow the onscreen instructions. Please remember the step-by-step installation example incl. screenshots is a great help, it's updated to the current version and it might answer your questions related to installation before you begin.
Done !
If you encounter any problems in relation to this, please check the FAQ and/or the forum.
I wish you good luck using AmpJuke !