We have just uploaded 7 presentations about compatibility issues between Windows Server 2003 and Windows Server 2008 to MSDN. These are all going to be linked from the Windows Server 2008 dev center.

In the mean time, here are the details to these files.

1. Overview:  http://www.microsoft.com/downloads/details.aspx?FamilyID=ed21160a-2ee2-42e1-bced-6dedb3504656&displaylang=en

2. IIS7:  http://www.microsoft.com/downloads/details.aspx?FamilyID=f6eb7a5b-1956-4a38-8752-1f06df337864&displaylang=en

3. Active Directory: http://www.microsoft.com/downloads/details.aspx?FamilyId=6A1138EB-B21B-4735-BB92-B9458332C482&displaylang=en

4. MMC 3.0:  http://www.microsoft.com/downloads/details.aspx?FamilyID=aaaebab5-3e6f-464f-bcda-b5bff50f278e&displaylang=en

5. Failover Cluster:  http://www.microsoft.com/downloads/details.aspx?FamilyID=daca468a-ddb9-47c5-8a22-3a3b3766d3d7&displaylang=en

6. Server Roles: http://www.microsoft.com/downloads/details.aspx?FamilyId=08D3E26B-6575-47D7-8711-C490B6096C66&displaylang=en

7. Server Core:  http://www.microsoft.com/downloads/details.aspx?FamilyId=85932A9A-DE77-4637-8A3F-DC5348456699&displaylang=en