This script allows you to install a phpBB based community with a single mouse click. It will have it's own database and it's own files.
What is this useful for, you ask? If you like creating hacks for phpBB, it's best to have a separate install for each hack you are developing. Going through the installation process each time is a pain, so this script will make it easier. Another thing you can do with it is manage these installations, which means you can delete them easily.