Well that's not the best angle on the wheel for modelling purposes. I hope you have more reference pictures to work from otherwise things are gonna get tricky.
As for version 3, that's still in beta, but it's very workable and stable, if you have version 2 then it's available to you now from the http://moi3d.com/download.htm page. There is no date that I am aware of for its release other than when it's ready :)

Martin Spencer-Ford