I am really sorry that no one was able to answer your question. But I really believe it is because on iOS no one is using Web Services (SOAP).
It is old technology that is a real pain to use, and since there are better easier solutions and people building iPhone apps are pretty much in new apps greenfield, they wouldn't choose such a bad technology. And that is why there isn't anyone around to help on that problem.
Thanks a lot Mark i will verify that. Also i came across some some REST webservices USING REST KIT FOR RESTFUL WEBSERVICES .how about using the RESTKIT for web services. Will it be a good option. Kindly suggest me.