can't run StockQuote example. Please HELP!!!

[Truong,Hoang C.]

Hello all,
Sorry for a newbie question.  I am trying to do SOAP for my project.  I
just want to get started on this SOAP thing,  I tried the Stock Quote
example.  Here is the error message I got:  

Ouch, the call failed:
  Fault Code   = SOAP-ENV:Server
  Fault String = service 'urn:xmltoday-delayed-quotes' unknown

Can anyone tell me what is wrong with this?  Your help is appreciated. 
Thanks

Hoang