Thx Javagreen

So you need to have the latest version of iTunes ( 6.0.2.23 ) installed and then install the
Multiplugin. After that open the zip file that you have downloaded and place it here : c:\Program Files\iTunes\Skins\
Launch iTunes and go in the options , click on multi-plugin and then choos first of all "keep the buttons on the right side" then choose the skin and push on OK