Plugin Problems

Well, now its my turn for plugin headaches- I have the latest version of Audacity. I download the plugin-chorus, flanger-whatever. I add it to the plugins folder on the program file and it shows as a plugin feature. Now, the problem is once I open Audacity and go to the activate option, the plugin doesn’t even show up. It’s like its not there. I go back to the actual program file and it is there. But it is nowhere in the effects option to even what am I doing wrong here?

Recently the Audacity plugins folder moved from “Program Files” to this hidden folder