help to integrate YAHOO api in objective c(iPhone)

hello,

I am using the sample example of YAHOO api integration with objective c for iPhone..
from the code available on

I have come with no outcome..
Actully i wanted to show the contact list of yahoo account.

I have followed the steps given on the link...like getting an consumer key, consumer secret and application ID.

Editing the sample code with these keys and ID..when i send an HTTP request to the server it returns the following error in response

"oauth-error, CONSUMER KEY REJECTED"

Its gone above my wits debugging the sample code..
So any immediate help would be appreciated

Thanks and yea also "HAPPY NEW YEAR"
Sachin
Thanks

 

ohh i am extremely sorry...here is the link..

http://developer.yahoo.com/social/sdk/objectivec/