how to create publisher efficiently ?

Thanks for your reply. For many many hours we have been trying to make sense from the API and its documentation. So far, the possibilities on paper are plenty but in reality the API is often not working, throwing odd errors, sometimes even telling us whole classes are missing, and the documentation is full of holes. Before diving into yet another API documentation; have you (or somebody else) been able to pull something like this off? Creating a new user using the API? The PDF manual of the drupal module also appears to be incomplete and outdated. Creating new users is so basic and should so easily be possible, yet we are right now going down a completely different road because we do not trust the API anymore. Instead, we are dissecting the MySQL database and examining how the tables changed after we added a user through the admin console. By simply adding the same records we hope to be able to create users on the fly without needing the API. Will post updates of our progress. In the meantime, if somebody could shed light on the API that would be excellent as well.