VCB 1.0.3 is compatible with VirtualCenter 2.0.2 and ESX Server 3.0.2 (or newer) only[/b]. Please refer to the release notes for more information.
Download:
http://www.vmware.com/download/vi/
Release notes:
http://www.vmware.com/support/vi3/doc/releasenotes_vcb103.html