I have come to the conclusion that this track is either definitely produced or part-produced by Jules.
Here are my reasons:
1) Jules is the only person who appears to have ever played this track.
2) In nearly 10 years, not one person has either identified or confirmed responsibility for creating it - be it fellow DJ, producer, or outside individual.
3) Jules's own answer about it in an email to gaz2195 (posted on this board here is: "I know it samples Ry Cooder". This is either an astonishingly good bit of ID'ing, or because he knew it in the first palce because he made the track.
4) Moonman identifies on this board here that the Ry Cooder track it samples is called: "Paris, Texas".
5) The year before, we see Jules selected "Ry Cooder - Paris, Texas" as his opening track for a mix tape for Muzik mag - the scanned image is in our gallery archive here.
I think we need a post from the man himself on this board to finally put this to rest