Why does my statistics page hang?

Hi - I have installed Google Analytics +. When I go to the statistics page for my site http://www.wagercentre.com it hangs, with the timer revoking and does not rerun a report.

I have generated a Google tracking ID and put this into the configuration. Do I still need to put the Google code on each page, or does this plugin take care of that? If I do need to do this, I am not sure where I should put it - I can handle this with html, but in a Wordpress implementation I am lost.

Regards, PAul