Pictures of the front and back cover art for FF7 here: http://www.rpgfan.com/soundtracks/ff7piano/index.html

and FF10 front cover art here (looks like it'd be the cover art, though I don't own this one, so someone correct me if I'm wrong): http://www.rpgfan.com/soundtracks/ff10pc/index.html

Hopefully that's what you're looking for.