[Plugin: Google Analytics for WordPress] google analytics

I have just unloaded the plugin of google analytics, but I cannot install it, I do not understand him to the video where they explain the way of installing it. What do I do?

Also I have tried to update all the plugins that I have installed but he says to me that it flaw the installation. This is the URL of my site:
http://www.adiestramientoparatuperro.com
Thanks for your attentions

http://ww.wp.xz.cn/extend/plugins/google-analytics-for-wordpress/