Like cabal5935, I could not get the "gay" utility to work. First, there is no firmware image on my Sky CD and second, the upgrade utility gave me the same results as the original (or early) post in this thread.
So I thought I would try cabal5935's method, but, of course, again, there is no firmware image on the CD (and there is no flashing utility either). I tried ignoring this and put the router straight into debug mode, but it would not accept the Netgear image file.
Can anyone suggest where I might find a Sky firmware image so I might get to first base with cabal5935's method?