Dave, if worse comes to worse, you might consider holding the photographs and seeing if the Theater can make the space available at a later date or if another space might be used - either in Wellingborough or, perhaps, another town/city. I can check around here in NY, but then I would probably be the only one from the group to see the exhibition!
In any event, you might also go ahead with the 2010 Yearbook if everyone would still want to see/have one?
Thanks for all your efforts Dave and let the matter rest while you enjoy a good holiday!