David,
sorry I am slow in replying, I am having difficulty calling up Small Talk for some reason, I have somehow got here. If you click on the link below you should see
Listen Again click on Mon (Monday) and the show broadcast last Monday should load. The Al Stewart interview starts at about 2 hrs 20 mins. You can jump forward in 5 & 15 min intervals. Do not click to quickly as it can jump back to the begining, if you hear 'Year of The Cat' stop as the interview follows. It is worth listening to. The song 'Somewhere in England 1915' is terrific.
Good luck
Jim.
http://www.bbc.co.uk/radio2/shows/wright/