i found castor.jar in bin folder. i know it's a O/R mapping tools. does it mean that ozone use an RDB backend? if not, what's the use of this? pardon for my ignorance. thx _____________________________________________ 数码产品新上市，酷 http://shopping.263.net/category21.htm 精品小家电迎夏热卖 http://shopping.263.net/category23.htm