Hi,
I have a WA sponsorship and the online website shows State/Territory Sponsorship as Met since Jan 4 2012 but no sign of a CO till now. My application was filed in 2009. We changed it to State Sponsorship in Dec. It has been acknowledged by Diac on 04/01/2012.
So I guess 4 weeks is just to mention, they pick applications as and when they want. Few people got it here in a week's time but wait can be even longer.
So I am Still Waiting.....