I was hoping to see some resolution of this problem, because I am running into the exact same issue trying to deploy the Mac agent to a local Mac. The Mac is sanely named.
The software is actually already present on this Mac, but the "No Centrify Suite is available on the selected platform" error message makes me believe that this is not the problem. (I've been using the target Mac to experiment with; it's currently not joined to the AD domain.)
I am, however, currently stuck at Mr. Robertson's step 5. Guidance would be much appreciated.