Forgot to add this to my review earlier, so I decided to write a second review for an earlier chapter. ;)
The Lovegoods obviously pretend Harry is a year younger so as to make it less obvious that they are taking care of the Boy-Who-Lived. How did they get around the Book in Hogwarts, though? The Book which knows every single magical child born and which McGonagall uses to send out the letters? Either Harry would have gotten his letter when he was 11 anyway or he wouldn't have gotten the letter at all?