there were couple of videos on youtube of traveller showing interior of his flight (I believe it was from AUH to LAX...not sure though) which he said was this reconfigured 777-200LR. If you slow down/pause certain parts in the video, you can get idea about which seat is exit row, near lavatory or near crew station. I did that to confirm seat assignments for my family's DFW flight.

Here is the video: http://youtu.be/05tgFnd_T3Q