His account does not corroborate that of Ms. Tierney. At no time does he go to Ms. T's desk and ask if she has a USB stick reader. We get the impression that there are a number of nannies floating around and he decides on Kat, who incidentally looks nothing like Ms. Tierney.
From the book 'madeleine'. chapter 5:
Russell later asked us for our digital photos of Madeleine and went off somewhere with our camera.
That is no help either, as we can see in the technical details in part one. The Canon could not have printed that photograph as the aspect ratio is wrong.