Vista - Importing Outlet Express Address Book

When I import the Address Book (.wab) that I use with Outlook Express 6
(Windows 2000 Pro environment), my Contacts do not get overwritten. A new
contact for each person is shown each time, although the contact/address
info is identical. Hence, I may have 3-4 contacts for the same person. How
does one clean this up, or import addresses/records that overwrite existing
records?

Also, I have addresses that I (supposedly) imported that do not even appear
in my Contacts list. I must be doing some thing wrong.

Thanks for any assistance.

Gordon Biggar
Houston Texas