If you only see ABC and SBS in your guide then you may have set your IceTV account to be in the wrong region.
This can happen if you are not in a capital city but have set your region for IceTV to be a capital city. For example if you are in Regional Victoria but set your guide region to be Melbourne, what would happen is that you would see the guide for ABC and SBS (because their channels numbers are the same Australia wide), but you would not see any of the commercial channels as the channel numbers for these channels differs from capital cities to regional areas (for example Nine is on channel 9, but Win is on channel 8).
To fix this you should run through the FAQ How do I change the guide region that I am receiving? for your recorder.