OH MAN!!
About 4 years ago when I was in RCIA, I asked our parish priest about the whole JW Jesus stake thing, he gave me some information on it, and its somewhere in my library, but I like the fact that he told me its not only supported by our church that he did infact was on a cross but he said ask any historian who has knowledge of Ancient Roman civilization, and they will confirm what the church has been saying all along.
If I find those papers I will come back and post