There is no downloads available via => http://java.net/projects/identityconnectors/downloads
Or e.g. => http://java.net/projects/identityconnectors/files/documents/9014/144205/ActiveDirectory.Connector-126.96.36.19943.zip
The .NET Connector Server, the Active Directory bundle and the Exchange bundle are accessible from ConnId's website at http://code.google.com/p/connid/wiki/Downloads.
ConnId's main purpose is to build a new home for the Identity Connectors project, with all that is required nowadays for a modern Open Source project: Apache Maven driven build, artifacts and mailing lists.