I doubt they'd get any more details or updates than you would checking that website. I just got approved for my 175 and the timeline went something like this (I'll repost it in the sticky link too):

14/10/2008 - Application Received, processing commenced
I submitted my medicals and police checks in November (some prefer to wait until the CO requests them)
They updated that my medicals were received (the page has changed so I don't have the date but it was shortly after I sent them).
Then it was a Loooooong wait.
21/5/2009 Application Being Processed further (all of my documents were then marked and dated as 'met' on the document checklist)
02/07/2009 175 visa granted.

I applied as a civil engineer (single application - no others) on the 175.