Ehehehehe, wickedly funny! Oh dear, looks like Ron's a little slow on the uptake -- either because he didn't realize precisely what the book did, or because it didn't occur to him that Harry would want to wank over his picture... or perhaps both! No, Harry, I imagine you DON'T mind invading Ron's privacy like that. ;P I'd love to be a fly on the wall to witness Hermione's reaction the next time she takes a look at the updated edition.
Welcome to the comm! :D