You can buy Gap through some online shops in America and also check the US and UK ebay shops - some of them deliver internationally.
There used to be an Australain online store that sold Gap but it wasn't there last time I checked (a week ago) - she must have gone out of business.

Blackbird, you might like Gap too because they have slim and husky sizes.
I love the petite jeans - I'm a shorty so it's nice when I don't have to pay an extra $10 to have my jeans adjusted.