It is suggested that you have at least PHP 4 or 5 (tested more thoroughly on 5).
File uploads must be turned on.
Please note that I have not put any work into this project since early 2007. There is currently an SQL exploit that would allow an unauthorized user to log in, but not to any particular user's account.
This project is released under the GPL License Version 3. Any future versions may be released under a different license.