I use Ubuntu Linux, but I'm sure this will work for any distribution that supports screenlets.
1) Install Screenlets - http://www.screenlets.org/index.php/Download
2) Add the Widget Screenlet via - http://www.gnome-look.org/content/show.php/show.php?content=70799&vote=good&tan=90243706
3) Create a new .html from the attachment and save it into the ~/.screenlets/Widget/widgets/ folder. You may wish to edit the site for your specific location. I had to browse the img source to find the proper URL.
4) Use screenlets to add the new CSC to your desktop and then change the widget to the newly created CSC.html file.
Also note that I set the widget to a meta refresh of 2 hours too!!!