Ok, I'm not a MAC user, but:

Let me get this str8... Entourage X is a client similar to outlook. You can use the exchange update to connect to an exchange server.

Directory service
Quickly locate e-mail addresses by searching the Exchange global address list (GAL).
You are asking how to do it?

I can't find any good manuals online... so you're probably going to have to dig yours out, or use the help files (mostly useless when it comes to updates).
http://www.microsoft.com/mac/product...exchangeupdate

They cover several issues there... but not a step by step setup for using Entourage X with exchange.

Maybe you have to rebuild/reconfigure your profile if you were previously setup for IMAP/POP3. I know with Outlook... if you set it up as "internet only" and then want to connect to an exchange server, you have to rebuild the profile. (outlook 2000 anyway).

You also have to make sure that IMAP is enabled on the exhange server... as MAPI is no longer supported.

Sorry... I don't have access to a MAC to try any of it out... by maybe a point in the right direction?

After looking into it a bit further... it looks like that application is a peice of sh17!
http://www.tcdv.com/issue8/newsletter.htm those are some customer reviews. Not a single good one in there...