Have you got software such as Shrink Pic running in the background? When Shrink Pic is downloaded, by default it puts itself into your startup folder. See whether it's hiding in your System Tray.
Incidentally, images of 44k, 88k or even 155k are certainly not big. You'd be pushing your luck to get any kind of reasonably sized printout from them.
I should also mention the question of copyright on images such as the ones you've named. Using them for cards, etc, could be an infringement.