May be Some more useful resources about sunflow. [\:D/]
Link 1: http://www.mediafire.com/view/369a2orori1mwsg/Sunflow-Manual_2.pdf
Link 2: http://www.polyquark.com/opensource/
Link 3: https://code.google.com/p/sunflowapiapi/downloads/list
Link 4: http://www.timestretch.com/tag/sunflow

I am still waiting here to see a comment or a responds from developers side,especially from Emmanuel Puybaret. [=P~] [:((]