I know this is an old thread, but I've only just come across it.
Anyway, twelve years ago, I was fortunate enough to pay a visit to Wroughton. This was in the days when it was easy and free to do so: I simply rang them up, they told me to come along at 10.00 on a Tuesday I think it was, I did so and duly got a personal guided tour (with about five other people) of the whole facility. I photographed nearly all the aircraft there and here is a link to most of these:
Wroughton, 7th July 2000 - a set on Flickr