Just checked the website (http://www.cyclingphotos.org.uk), and they have loaded tons of snaps from the Dragon Ride.
After looking through all of them I found the Addiscombe crew. If you select the second heading on the list ; '24 miles in, climbing out from Efail fach' you will find , Mark on p35, Alan on page 37 & Mark L on page 40.
I can find no pictures of myself - I must have imagined it all ! Actually this seems par for the course 'cos on my 2005 Tour dvd , on the stage up the Galibier, I can spot 3 people I was alongside with watching the stage but I am nowwhere to be seen..... sniff....