How it's work?
Just install the plugin and active it.
Once done, just click on any post you want on your blog for translate it.
We just add a few language:French, Italian,Spain,German and Japanese.
We will provide more language and more feat on the next version.
You can see an exemple here :
http://wordpress.devoox.net/
On that exemple, the text is in French and you can double click in for translate it.
Upload this folder on your plugin folder.
Activate it.