Chap,
Actually no I have not heard of them, but I agree with rem, how does that show he even existed, much less resurected. It really only shows that there was a movement, not a person. I had heard of one reciently found that said something to the effect "James the Brother of Jesus" on it. But....... Yeshuah and the hebrew version of the name James were very common names in the first century in Isreal.
Seedy