Microsoft released yesterday Automated Deployment Service (ADS) 1.1. It now includes Virtual Server Migration Toolkit (VSMT) and the package is in fact called ADS_VSMT_1.1.exe

The unique change related to Virtual Server 2005 is the resolution the resolution of the support article 875533:
Virtual Server 2005 virtual machines cannot contact the Automated Deployment Services controller during the Pre-Boot Execution Environment startup process

The VSMT included in in ADS 1.1 seems unchanged.