Can't add to distribution list contacts from bosses contact list

Using Office 2003 with MS business server.

The boss has allowed the assistant to have access to his contact list.
She can add, delete, or edit his contacts. However, when she picks a
distribution list and wants to add new contacts to it, she gets a modal
window that gives her a list of sources -- global contacts, etc. .. sorry
its not in front of me now. However, the boss's contacts are not one of
the choices.

So, How can I move all of the bosses contacts into the global contacts? or
how else can I solve this problem.

thanks so much,

--
Joel Goldstick