The EBS tools have been substantially updated and restructured.
The new tool set is called the Microsoft IT Environment Health Scanner and is available for download here:
The EBS tools are used as part of our server and network health checks on the source SBS 2003 server that will be eventually be migrated to SBS 2008.
Our SBS 2003 to SBS 2008 migration guide post:
Microsoft Small Business Specialists
Co-Author: SBS 2008 Blueprint Book