I have Photoshop Elements 9 and when I try to download updates, especially Camera RAW 6.5 Update and Elements 9.0.3 Update, I get message to try later. I have been working on this issue for several weeks. Also, when I try to sign into Organizer, I get "Error 400"! Is this Elements 9 version compatible with Mac OS 10.12.6? Thank you.
Sign-in no longer works.
For the updates, see if installing the newest Adobe Application Manager lets the updates complete.
If that doesn't work you can download the update installers from here:
Then to install, follow the directions under Creative Suite 5.5, 5, and 4 here: