I have FINALLY created an english demonstration of the JFusion plugin for both OCS and OJS integration for Joomla.
The demo site currently uses Joomla 1.5 and the latest JFusion 1.5.5.
When the Jfusion 1.6 is stable with Joomla 1.6, I will give it a whirl. But for now, since Jfusion does not install well on Joomla 1.6 I am only supporting Joomla 1.5.
You can try the plugin here:http://demo.conferencewebs.com
(The main article describes the testing process)
You can read about my work on integration of Joomla and PKP software here. http://pkp.sfu.ca/quickstudy5