forgive me if I have totally overlooked this, but I am having trouble finding documentation on what needs to be configured here. I've seen several articles on 3rd party sites but they seem to be lacking certain details. Setup - Exchange 2007 sp1 CAS/HUB on Windows server 2008, Exchange 2007 sp1 Mailbox server on windows 2008, two 1 Windows 2008 DC "soon to be 2" thanks a million.

Hi, Entourage still uses WebDav, /exchange and /public virtual directories on Exchange 2007 which are created on CAS server for backward compatibility so no need to configure anything as an additional settings. You can refer Office 2008 for Mac Administrators Guide below. Exchange Server and related requirements for Entourage 2008 http://www.microsoft.com/mac/itpros/default.mspx?CTT=PageView&clr=99-15-0&target=d41b4196-4321-48f7-9900-cbf678ac819c1033&srcid=598f107c-575b-4304-9219-bffc1c32f7ab1033&ep=7