Hi John,
Hope you dont think that this is too cheeky but had a fiddle about with your original image and processed it the way i do with photomatix and came up with this, which I am asuuming is close to the effect you were looking for. It isn't a true HDR as it came from a single original image, but the software can be used to create the effect like that.
(feel free to delete this if you think I have overstepped the mark).
Photomatix, as I expect a few of the recent purchasers are finding out, does take a bit of getting used to get the looks you want, but I think it is well worth sticking at.
And Andy C , I had a look at your first attempts and I like the Barton aerodrome one very much. Are the others Atherton Cemetery?
Regards, Keith.