General help needed to add computers and start

Just purchased the Corporate licence.  We have a few computers that already have TV14 downloaded and set-up with free accounts.  I have their Partner Codes and Passwords.  How do I migrate them to the new corporate account?  Have no idea whether I add them as computers?  Whether they are to be set as new or existing or whether this is even the way to set-up the remote computers?  Can you point me in the right direction?