After trying just about everything to get the "new" drivers to work under Vista 32bit with no success at getting rid of the freezing problems I had I gave these a shot and they worked wonders.
Cleared up the freezing problems completely, but I can't comment on bandwidth performance issues as I'm stuck using wep for backwards compatability reasons.
What I don't understand is why it took so long to get these out, and why haven't they been released as a supported driver.