Unfortunately I had to remove it and fall back upon another Chat service which falls well short of what we need. The problem was an erroneous DOM READY ERROR which I am guessing was a conflict with the Menu on our template. It took me months to track this down as the error only appeared on some users machines and never on any of mine.
The publisher just said I can see it is working fine which means we cannot resolve the issue.
If it works for you then this extension is very good at what it does, unfortunately it didn't work for me.