I purchased a CC membership several weeks ago and immediately loaded LR on my master machine and becajuse of a heavy pre-trip workload postponed installing Photoshop CC until i got back. I am trying to download it now and keep getting an error that says that Safari (screenshot attached) can't open the specified address because OS-X does not recognize Internet addresses beginning with "aam:". This machine is running OS-x 10.7.5. At the time I purchased the CC membership, I downloaded both LR & PS on my laptop (OS-X 10.9) without difficulty. No problem to load 10.9 on this desktop machine if that is what it takes
Try another browser.
Also, make sure you have the Cloud Adobe Application Manager
Tried Firefox and got similar answer, couched in their terms. Upgraded to Mac OS-X 10.9 and tried the download again: success. Thanks for the answers!