Hi,
   Need help on this.
   I would like to know which are the supported currency codes by Google Currency Converter.
   Any clues?

http://www.google.com/help/features.html#currency

Every currency conversation I've tried before has worked.

Some of the ISO Currency codes (http://en.wikipedia.org/wiki/ISO_4217) does not seem to work
For example: UYU , (Peso Uruguayo,Uruguay)
does not work
http://www.google.com/search?hl=en&client=opera&rls=en&hs=Y32&q=1+UYU+in+USD&btnG=Search