You can do this if you have the expensive corporate messaging system,
Microsoft Exchange, installed, otherwise the function is intended to insert
the address book view of Outlook's contacts list. If you want to merge
addresses from some other address book, you must export them in a compatible
format such as CSV. In Address Book 6, this can be done from the file menu.

Signature
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Graham Mayor - Word MVP
My web site www.gmayor.com
Word MVP web site http://word.mvps.org
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> Please Allow Us to import Address information from other microsoft
> address products such as from address book 6.00.2900.2869 into work
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>
> http://www.microsoft.com/office/community/en-us/default.mspx?mid=a7f92756-c061-4
7d7-8efc-31927055b315&dg=microsoft.public.word.mailmerge.fields