Hello Fernando,
indeed this feature is not available yet. It will be part of Solution Manager 7.1 as an Add-On
Please check these docs:
http://scn.sap.com/people/christian.martick/blog/2011/02/03/central-cts--how-is-it-going
cCTS is planned to be available as part of the GA version Solution Manager 7.1 SP2. However, this release will not include a cCTS standalone version, but a version that serves as the central transport
layer below the ChaRM flex version. Right now, it is not available to customers at large, but only for selected pilot customers - and so is the documentation.
By the way If you are interested in becoming a pilot customer you should speak with your SAP account manager.
I hope this helps.
Best regards,
Tomas Black