Office Communications Server 2007 Content and Documentation
This site does not have every released component of the 2007 product but it is the one I have requested to be updated to include the missing items (Deployment Validation, Update Service were the two I found missing at this time)
http://technet.microsoft.com/en-us/library/bb676082.aspx
Note: I will delete the prior post for the deployment validation tool as it was simply a link which is included above.
