Vista will certainly support Word 2002 or Office XP and many have installed
Office 2000 onto Vista.
If you do consider moving to 2007, I'd recommend one of the cheaper editions
of Office 2007 rather than any stand alone because you get considerably more
bang for your buck. Check prices at
http://office.microsoft.com/en-us/products/FX101754511033.aspx#1 and you can
try Office 2007 free full functionality for 60 days as well at
http://office.microsoft.com/
There are some special considerations for Outlook 2002 in Office XP or
standalone on Vista.
Outlook 2002 works fine, but email account passwords are not saved. This is
because Outlook stores passwords in protected storage interface and Vista
does not support it.
Outlook 2000 in Internet only mode (IMO) loads but the address book does not
work - it needs the Windows Address Book files (wab.dll), which is not found
in Vista. Corporate mode seems to work fine in my limited tests, once you
get past the Outlook Start Up screen and verify it should be the default
mail client. (This dialog comes up every time I restart Outlook.) Either
switch to Corporate mode or upgrade to Outlook 2007. Vista's Mail and
Calendar applications are viable alternatives to Outlook for many home
users.
Outlook 98 will not work correctly due to the missing wab.dll. for the
people who need to use the address book and are using it.
Good luck,
CH