I have been using Office 2003 since last year with Windows Vista Release Candidate 2 without any problems.
I have just installed the final version of Vista (for the second time, after I have messed up the previous installation) and I have installed Office
2003 just one hour ago.
Not many people do. Most of my customers that have tried it, hate it and request to go back to 2003.
Ive been messin with it for a few months, and i just cant seem to grow to like it. Im not opposed to changed but this is just unproductive as all get
out IMO.