This looks interesting. We have multiple centre numbers (one for each board, it seems). We're not a split site, though, I think it's just the way it was originally set up and the exam boards don't want to merge the numbers!
Does this program support more than two centre numbers? If so I might have a word with our Exams Officer. It'd save him the job of changing the centre number in Exams Organiser to produce the entries. We'll try tackling the exam boards again, but this may be an alternative if that fails.
Thanks for this!