To using Rocanowi Simple Website you will need:
RSW run on any web server that support PHP and MySQL for database. RSW tested in my local server with specification: XAMPP Version 1.6.4 (for server), PHP Version 5.2.4, and MySQL 5.2. It run perfectly in that system.
Any updated browser should be work. Developer using Firefox to test RSW, so best experience is with Firefox. Javascript also needed to run RSW, but it's optional because there's only a little Javascript in RSW code.