I can now install Outlook 2007 from our corporate installer (which wasn't possible on 7.0.0; good work, guys!) and get to the point where I can set up my Exchange account. It asks me for my password over and over and then crashes. The same setup works in Outlook 2007 in WindowsXP in a VM (I had both running, so I know I was taking the same steps).
Much closer than the last time I tried, but there is some work to go.