Can you tell us what versions of CUCM and CUxAC you are using? Just extensions alone in CUCM will not sync to the corporate directory within the attendant console application. You will at least have to have user's associated with those extensions and depending on your rule set within the console that should then bring those extensions into the console directory.
Are you getting this error “Installer User Interface Mode Not Supported. The installer cannot run in this UI mode. To specify the interface mode, use the -i command-line option, followed by the UI mode identifier. The value UI mode identifiers...
The below trick might come handy when you have to add a new node to a cluster but you don't have or is unsure of the security password for the publisher. This procedure has been around for ages.
1) Login into the CLI of the Publisher.