I can find the extensions that I downloaded in the proper Library folder but they do not show up in PS CC2014

I downloaded some extensions and they are placed in the ~/Library/Application Support/Adobe/CEPServiceManager4/extensions:  see the figure:

but when I go to PS CC2014 and click on Extensions this is what I get:

If I go back to the Extension Manager it says they are installed and do I want to delete them and reinstall.  I tried that but nothing happened.

Can someone help?

Tanya

2013 iMac 27" with 16GB and 1 TB drive

using Mtn Lion