1.) Yes Flurry is available on iOS & Android only. The upcoming Google Analytics plugin (will be available next week), will also support Desktop.
2.) Please use this url – http://v-play.net/license-plugins/ – to request a plugin license key until the plugin license checking is in place with the next V-Play update. We have prepared the web frontend, but only with the next update it will be ready in the engine & plugins. Sorry for the misunderstandings.