Are you manually mapping the fields or letting Outlook auto-map? If it's the
latter then the problem is likely that you're field names don't match so
simply manually map the field to appropriate Outlook field. If it's the
former - is the address field group you are looking at, the one that you are
importing your info to? (i.e. Business, Mailing, Home, Other....)

Karl

Try creating a few contacts in Outlook and then export them to either Excel
or Access and then view how the fields are setup. Then, massage your
contacts in Excel/Access to match and import into Outlook.