Hi,
I'm in the same boat as you - we lodged our family sponsorship 176 in jan 2011 and have heard nothing back. I have an agent who I asked about all the required and outstanding comments and he told me that's what it says until you get a CO. I was wondering too as it looks like they haven't received all the necessary docs. So nothing to worry about! My agent told me he expected to hear something in July, so hopefully we'll hear something soon!
Its a bit frustrating as so many state sponsered visas are being processed so quickly!
Orchid