didn't the concorde stop flying?

[EightsOnPylons]

I noticed this picture from may 5th this year.. I see a concorde taxiing, or is it taxiing?? it seems almost to be sitting in the grass. can someone please explain.. are they still in operation??

http://www.airliners.net/open.file/573699/L/

thanks,
eightsonpylons