address book photos?

I've added a photo of someone to my address book on the Mac and synced it my iPhone, but the photo doesn't show up. Am I doing something wrong? Surely I don't have to take the photo with the iPhone itself in order to use it in the address book?

Also, is it possible to sync the Thunderbird and Mac address books? Right now I've been entering data in Thunderbird, then exporting it and importing it into the Mac address book. It works, but I have to explicitly do it.