Good images of the back side of promo cards

I'm looking for some high quality images of the back sides of all the promo cards to print out and use.  Currently I have used the ones from Spiff's site (I think that is where I got them anyway) which are fantastic, but have the characters name inserted into the corner.  If possible I would like a high quality image of each completely unaltered back.  Some of them can be found on BGG, but some are not the best images and some (Freedom Six, Dark Visionary) do not have the backs posted at all.

Anyone know where I might be able to find them?

That would have to be the >G guys themselves, and I don't believe there are any plans to do that.  You'd probably need to get in touch with Adam, but from what I gather the ones on BGG are the ones they intend to release.