Maybe trusting somebody based on ethnic and religious associations ain't such a swell idea. I'm not even talking about what Madoff did to his friends in the South Florida Jewish community. The South Florida Catholic community has a fraudster of its own -- the Rev. Francis Guinan, who this afternoon was convicted of stealing $20,000 to $100,000 from his Delray Beach parish.A national group called the Survivors Network of Those Abused by Priests quickly fired off a statement reminding observers th