I've configured everything as per page 1 -- all seemed to go as it's supposed to. I started apache2, and got the message that the server has started. I made all the changes to the config file. But when I try and connect to localhost:8800 (as the server is local) I get: "could not connect to server (http://localhost:8800)".
I'm not smart enough to debug this on my own... Will try a reboot but suspect it won't make much difference. If I've configured Apache2 to listen on 8800, what else is there, as long as it's running?