This plugin is a nightmare. The explanations of how to get it to work are absolutely inadequate.
Also it now completely fails to publish to a timeline under any circumstance.
For a more complete review, see: http://www.skeptic.de/blog/kiv/?p=1076
Beware of the sockpuppets here who give the plugin 5 stars, but whose English is so poor, they would have no chance of operating the plugin at all.