Frank,
Retro has started to do silver pressings on select titles. I believe the new Manilla Thrills and the new Mariah will be on silver. The prior titles, to the best of my knowledge, will not be reissued on silver.
He was on the site within the last week. I saw his ID. If he hasn't emailed you since...then I'd write him off. And...I would imagine he's seen this thread and probably won't surface again....