I purchased the monthly creative cloud for a class on lightroom. But I couldn't download because I got error message that my browser was no longer supported. (safari or firefox) I had mac system 10.6.8. So just downloaded and installed os yosemite. Now when I go to my account at adobe there is no record that I have creative cloud so can't download light room. i don't know where the error is.
You need to download the Creative Cloud Desktop App.
Once its downloaded Sign In to the App
Go to Apps Section
You will see Lightroom CC 2015
Click on Install.
Let us know if it helps.