They usually are shown as "required" until you have a CO. The CO will then check your documents and update them to "met". Mine are still required after 7 months since my lodgement date.
At the current processing speed (one day of applications per day) it should take about one year. For example, if you're February 2011 applicant, you should have a CO in February 2012
Name: bogdan
Date of Visa application: 11 January 2011
Nationality: Romanian
High/Low Risk: LR
Trade/profession: Software Engineer
Visa type: 175
Onshore/offshore: Offshore
Pre-14th July 2010 Category (If applicable): NA
Post-14th July Category: Cat 3 now 4
Medicals submitted: YES (18th March email receiver)
Police check submitted: YES
Date CO assigned: soon
Date of employment verification (If applicable):
Date visa granted: soon