I've been in the IT industry for 25+ years now. And I have several friends who do the same. I know of no company, organization or any other entity that has deployed Vista, nor have any that plan to do so. Most are playing the wait and see game as far as Windows 7 is concerned. (I, conversely, run Linux on all my machines. Much to the chagrin of management!)
I personally think that MS played a gambit with Vista and blew it. I think that's one of the reasons why they have "allowed" PC makers the option of pre-installing XP when, at first, they refused to do so. If MS blows it again with Windows 7 this may be the window of opportunity in which Linux finally comes flying through as far as more acceptance is concerned. (most don't realize that Linux can do anything Windows does. Anything. And it doesn't crash! And it has no security holes the size of the Grand Canyon!)
Enough espousing the virtues of Linux.
Hope you solve your issue soon.