Was the "second version" of All Alone found in the tape research? It's the one with an electric piano and a considerably rougher vocal. It's from '79 I believe.
If you're talking about the one with an incomplete vocal & no sax solo, that was on the bootlegs before "Endless Harmony" came out - I'm under the impression that was the earlier version (from '78) and the one on "Endless Harmony" and now "Bambu" is the later one, from Tom Murphy's studio, in '79.