Apologies, I'm making a right "pig's ear" of this. I don't know how all that code in the last page I submitted to you got so mixed-up.
I've gone back and got an earlier page and I have inserted the new size validation instructions that you instructed me to do earlier..
The page won't process when I 'select a photo and then hit submit' - its gives me the validation error on the photo- 'no file chosen'
I've attached the zipped page.