G'day Hedley,
Nothing to do with fw dl'ed from satellites. The fw updates from the file in post #1 renamed to gupdate.gcd and placed alone on an otherwise blank CF card. Read post #1 carefully as well as the entire thread before proceeding at your own risk.

Maybe your version 2.0 fw is not US but some other regional fw, eg EU. Earlier in this thread a member posted about an issue using US fw 4.60 in an EU GW unit originally running 2.20 EU fw.... It may have been that he was in UK and the US fw is not designed for driving on the left perhaps. Check the earlier posts. It may also be that you need to progressively update from an earlier version rather than go straight to 4.60 in any case. I don't know any one in AU with a GW so i'm unable to check but i thought the AU bikes were fitted with the US 'Gen 1' units although fw 2.0 in a 2010 MY sounds more like EU, maybe. By those other posts it would seem unwise to load the US 4.60 fw onto a EU unit without a lot of prior research.

Best to find out more locally before going ahead. Good luck mate, cheers.