**updated 1-22-2008 – good luck Bill Dunsing on your live migration to ’08**
This same guide as linked below is also in the form of a .chm Help file. You can download that here: http://www.microsoft.com/downloads/details.aspx?FamilyID=95e4863e-bb59-4a66-9fee-9874e8903888&displaylang=en
This information is in regards to SBS 2008 RTM.
The very first information window you will see after the initial installation phase refers you to the link and information below:
Windows Small Business Server 2008 Migration Guide
This is Version 2 (as of 1/22/2009) of this document. For the latest version of the “Windows Small Business Server 2008 Migration Guide,” see the Microsoft Web site (http://go.microsoft.com/fwlink/?LinkId=91366).
Unlike previous versions, the Windows® Small Business Server 2008 server software (Windows SBS) requires a 64-bit server. Windows SBS 2008 does not support a 32-bit processor architecture.
This guide tells you how to migrate an existing Windows SBS 2003 domain to Windows SBS 2008 and then to migrate the settings and data. This guide also tells you how to remove your existing server from the Windows SBS 2008 network after you finish the migration.
To avoid problems while migrating your existing server to Windows SBS 2008, it is recommended that you read this document before (**editor snickers**) you begin the migration.