Hi Eugene,
If you can speek Cihnese, you could watch this video.
http://code.google.com/p/family168/downloads/detail?name=jBPM%204%E8%A7%86%E9%A2%91%E6%95%99%E7%A8%8B09%E6%B5%81%E7%A8%8B%E5%9B%BE%E8%B7%9F%E8%B8%AA.zip&can=2&q=
Related projects can be uploaded from here: http://code.google.com/p/family168/downloads/detail?name=sample.zip&can=2&q=
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