My daughter has the Professional version of MS Office 2003 installed and it
works fine. But there is 1 exception:

Her office (where she works occasionally, mostly be tele-commuting)
installed the 2008 version of MSOutlook (only, not all the other programs
within MSOffice) and now when she wants to receive mail from that office the
Outlook 2007 (or is it 08) wants to be the default. But how does she do that
with Vista?

She can send and receive all her private mail fine with MSOutlook 2003.