Append data from Outlook address book group

I created an access 2000 database by importing records from the outlook 2000
address book. I then manually deleted from the access database any records
and columns that were not relevant. I now want to append the Access database
with only the records that I've added to the Outlook address book since the
original database was created. These records are in their own group in the
Outlook address book. How can I do this? Thanks in advance for any help.