I am still unable to upload to my gallery but on trying yet again I actually got to the second page where you can add captions. It also loaded the exact same photos from a previous attempt! But it wouldn't go to the next step and upload those photos to my gallery. I tried a few times, then out of frustration I added a title to those photos and when I clicked on "process" I got a different message:
"KitMaker Gallery message"
"(): Sorry, this image type is not supported yet."
Still no good but a feeling that it's something to do with the format in which the system is dealing with the photos?
And to confirm, my photos are jpegs of around 300Kb and no more than 1000 pixels wide.