Where do I find my purchased photos?!

Hi! I've bought several photos and directly after the purchase downloaded them to my computer and saved them. Yesterday I bought a picture, but didn't have time to save it on my computer at that time. Thought it wasn't a problem because I have an account and everything should therefor be saved there automatically. The problem is that I can't find the picture I bought yesterday and actually not any other picture I've bought and paid for!!!! Where do I find them? My library just contains unbought pictures that I have saved for future inspiration.

Would be grateful for some help!

/Matilda