I'm looking for some tips on uploading photo's to Flickr... I'm in the process of upgrading my Flickr account to a pro account (which isn't going well). I want to use iPhoto to upload all my photos, but it seems to be pretty limited. As long as I upload an album and don't add to it, I'm fine- But how do you add a picture to an album that already exists? I want to reserve the right to add photo's after the album is established, but every time I try it, it just uploads the photo in its own set on Flickr. Any suggestions? Does anyone else use iPhoto as a Flicker uploader??