Please help with contacts and address book

[Peter]

I am using Outlook 2000 and have two sets of folders:

1. Outlook Today - [Mailbox - My Name]
2. Personal Folders

The first folder is my link to Exchange Server.

When I click on New Mail Message and click on Address Book, the list
of addresses I see is from Contacts located under Personal Folders.

I have two questions:

1. How do I get the Address Book to list my Outlook Today (Exchange
Server) contacts?

2. How do I back up or synchronize my Outlook Today contacts so both
contact lists (Outlook Today and Personal Folders) are the same?

Thanks,

Peter