Well,
The DS18B20's I bought DO all work correctly. I have read each one and they all report a reasonably accurate temperature. I am right now writing(copying and modifying) some code to read them all in a row. Thanks to Bruce's code at rentron... http://www.rentron.com/PicBasic/one-wire2.htm

I will report back after I am able to read them all simultaneously. They are very sensitive and so if you handle them it can change their tempurature by a few degrees. But they definately do work and are reasonably accurate.