I completely gave up on Vista after wasting 2 months trying to get the various tools working reliably. So I dusted off an XP machine, installed the tools, and everything worked.
I really gave up when I was in a room full of RIM folks and raised the issue "your tools are a disaster on Vista". They laughed and said "everything is a disaster on Vista". Tye message I took away: we're not worried about making Vista work.
My motto: life is too short to waste your time an a crappy OS that will be discontinued before all of the issues get fixed.