That's Christine Collister at the top (I think)...
I think you're right there. I've just looked her up on Google Images and one of the photos is actually of her and RT on BeesWeb back in 2002...
http://www.richardthompson-music.com/catch_of_the_day.asp?id=48Did she support Richard & Danny on a tour back in the 90s? DM might have been with them too. I have a vague recollection of her joining them for a song or two during the main set. Saw them at the Festival Theatre in Edinburgh.