No I haven't checked it although the last time I was in at the local Ford dealers I asked the question about oil changes for the auto box and the reply was it was not a requirement.
For the last twenty years I have been running a Volvo 240 auto and the last two cars were Honda CR-v's both autos and in every case there was an oil change requirement at some stage - I used to get the oil changed every two years regardless of mileage and had no problems. The Volvo auto box was still working sweetly at near 200k miles.
I will check the oil as you suggest, however I think I shall get it changed anyway. I have always tended to knock the selector into neutral in standing traffic as it takes the load of the clutches, however the last owner probably left it in drive as my wife tends to do unless I remind her.
Thanks for your input and I will report back.