Looking at the Calendar contributions on the site I noticed they are out dated and do not function with the latest release, rather than rewrite a large bit of code I have made this contribution that uses the Google Calendar. A more feature rich and better designed alternative! Installation is easy and it’s a drop in contributions that requires only a limited amount of working on existing code, namely adding the link and the defines. I have produced this is the English language but it is very easily ported to others languages. You need to sign up with Google Calendars (free) a link is provided in the package. Full instructions are in the ZIP file. See it in action first here http://www.development-server.net/n/google_events.php