Thanks for that, I understand now...
... I will try and post some pictures of our collection I just need to prepare some images so the board will accept them. I have a whole lot all sized and optimised on VillagePhotos.com but they have been off-line for the past week so I need to re-do them and upload them to my own .ftp (much more reliable!)
Should get some time tomorrow. once I have sorted that out there will be no stopping me...

Ralph.