Cheers for all the replies, all. I've checked airliners.net and there are only three pics of 747 visits - one the Corsair as mentioned above and one of a BA flypast. I don't think it ever actually touched down.
I'd love to see some pics of other 747s at LBA, I've always had a strange fasination with that airport - probably because I used to drive every day to work under that runway tunnel. You could almost feel like you could touch the departures / arrivals.
Totally agree ref: concorde too. Seeing her come down over Otley Chevin was alway, always a joy.