"Double the number"... means you actually change the code, ... verrrry carefully ... where it says
(a href='http://fineartamerica.com/featured/siberian-tiger-with-oil-painting-effect-rose-santuci-sofranko.html' size='20')(img src='http://fineartamerica.com/displayartwork.html?id=6587398&width=250&height=187' alt='Photography Prints' title='Photography Prints' style='border: none;')(/a)
you change ... width=250&height=187 ... to ... width=500height=374
That's DOUBLING the width and height attributes, in other words.
RESULT: ... a bigger picture that overrides FAA's default smaller size.
...sneaky, eh?