This will most likely get moved over to the home brew sub-forum, or you could re-post the question there - I'm sure that would generate the discussion with knowledgeable people.
If you are an extract brewer and want to brew with Vienna malt, it's about your only option...good luck! Edit: After a little research, the only one I could find was a domestic one http://www.brewingwithbriess.com/Assets/PDFs/Briess_PISB_GoldpilsViennaMalt.pdf