If you are getting a message on your stats bar that says, "stats images have moved", all you need to do to fix it is change "www" to "img" in your link's html code.
For example, my old (non-working) link looked like this:
http://www.geocaching.com/stats/img.asp ... eocaching!!
The new one should look like this:
http://img.geocaching.com/stats/img.asp ... eocaching!!