If you view your site in your browser,
<right-click> on the flag and choose "
Properties"
Look in the
Address (URL) line in the dialogue box that appears.
It will probably be something like:
CODE
http://yoursite.com/catalog/includes/languages/english/images/icon.gif
That will tell you the path/name of the gif.
Most likely on your site it is:
/catalog/includes/languages/english/images/icon.gif