Ajax Availability Calendar

Chris, Thank you for looking into this, my site address is http://www.villawistley.com/Calendar I have changed the permissions using filezilla to 777 (read/write/execute) and I am unable to do anything with it. For some reason my PM message just sits in the outbox and doesnt appear to have been sent...

I am a complete novice at .php and am struggling with the same problem. My host is Heart Internet, I have uploaded the contents of the downloaded rar/zip calendar content to my server. I can load the ajax installation page but when I try to complete and define the database configuration it just says...