The only thing I found was this:
http://www.huffingtonpost.com/2013/0...n_2708518.html
and it actually debunks the case. As the pope, he is head of state, and has diplomatic immunity, so he can't be prosecuted. The fact that he's resigned actually makes it possible to prosecute him, which is why he'll remain in the Vatican. The upshot is that not resigning would have been the best way to avoid arrest, and that's not what he's done.