Jshep500,
Windows 2K will no longer be supported later this year. You will need to be on Server 2003 and Exchange 2003 to work with Windows 7.
Should you require additional assistance and guidance, Microsoft does have an official Windows 7 Support Forum located here
http://social.technet.microsoft.com/...egory/w7itpro/ . It is supported by product specialists as well as engineers and support teams.
Jessica
Microsoft Windows Client Team