Pete,
Yes it was strange as I couldn't work it out either.
Anyway like I said I changed all the ch numbers in TivoWebPlus and then re indexed them so they would be ok etc.
When I redid the guided setup I never changed any settings and it stayed on Austar of course but then when I rebooted after many hours like I said it was all the foxtel channels and Austar ones wheren't there to be selected etc in channels I recieve.
Anyway as I have it sorted I am not at all worried at about it now and if I do a guided setup again then I will post in this thread the outcome if it still does the same thing etc.