For them what's interested, I found the CD listed in the Weill homepage discography:

Armstrong, Frankie. Let No One Deceive You: Songs of Bertolt Brecht. With Dave Van Ronk, with Leon Rosselson, guitar and piano, and others. Flying Fish Records FF 70557.

The Kurt Weill web site, which Joe steered me to awhile back, is:

http://www.kwf.org/kw/Welcome.html