soundiver on "I cannot see plugin, but they are in the plugin folder"

Hello, I have just installed ZenPhoto on my WAMP (local php / mysql). Zenphoto works good!
...The problem is: I have added plugins in the Plugin folder (unzipped), but I cannot see the plugin in the admin area.

I have restarted Wamp, but new pulgins still "invisible"...

(Plugin are ScriptlessSocialsharing and GoogleAnalytics)