Well the module itself only supports Jooml 2.5 and Joomla 3.x but if you use joomla 1.6, the backend should be similiar with Joomla 2.5 backend. Also, joomla have never changed the way to add banner since Joomla 1.5 version. Please see
www.dropbox.com/s/pt4jf0qysakf7b8/mfx3q.jpg?dl=0