Like you, I've been searching for the elusive "4 tracks from Live in Austin", but they're not there.
I guess the original limited edition really was limited, and has sold out, as the current version now includes the brief "making of the Invisible video" documentary, instead. Interesting, but not quite adequate compensation.....but as I'll likely buy the 2000 Austin dvd soon, I guess it's no big deal.
It is, of course, also possible that Amazon are simply sourcing this from stock designed for another European country & haven't updated the product description (& not for the first time!).
Otherwise, I'd agree it's a great album, some marvellous lyrics, and having listened to it immediately after watching the dvd of the "Woody Guthrie at 100" concert, there's a definite lyrical/spiritual connection, which I'd not anticipated.