How to install:

1. Create a new DB called 'calendar' (or whatever you specified in /inc/globals.php l.7 "mysql_select_db("calendar",$db)";
2. Run the SQL script /sql/calendar.sql
3. Edit /inc/globals.php "$db = mysql_connect("localhost", "username", "password");" to reflect your database configuration
4. Change the superuser password in /inc/globals.php

That's it!