Adding members to Distribution List

My organization uses Outlook 2007 with Exchange 2007.

I have a user that connects to her bosses contacts from her outlook. She
has owner permissions to her bosses contacts and she add, modifies and
removes contacts all the time. She wants to create a distribution list in
her bosses contacts with members from her bosses contacts. When she pulls up
that address list, she see her contacts, the GAL, contacts from the public
folder, but not her bosses mailbox. She doesn't have the tab "Outlook
Address Book" when she pulls up her bosses contact properties.

Is this possible to do?