That code comes from the the application in the root of the domain and is required and the main app runs fine. I actually got it to work by putting live support in its own website and calling it from support.domain.com instead of in a virtual directory like domain.com/support. However, I ran it once, added 2 operators did a test but the client app failed on my PC (Running Vista Ultimate) Before it failed I did see the live support icon change to online and I did see the operator enter the chat room and got the notice of pending chat on my client pc.
Being the dns was just setup for support.domain.com it may be that is the issue. I'll wait a day or so for propagation and see how it does then
Have there been any issues with the client application on a Windows Vista machine?