Hey love, ive had the same problem and i LIVE in the US! its impossible to find them in a store.
However, i was lucky and found some used ones via amazon.com
This is a very reliable scource, and it has quick shipping and different payment options.I purchased 3 of them this summer.
Dont fret that they maybe used, they are in pretty decent condition when u recieve them. Just read the descriptions, and there are collectible ones as well, as long as u are willing to pay for them.
Where do u live?? because many of the stores i called searching for some said i could write letters to the publishing companies in England, because they didnt even have them laying about at the shipping companies within in the US, and im talking about the biography published and printed as recent as 2000.