@ovi....hello .
..could you please how to change the new roaster...mentioned in the link given by you..

One of my friend has updated me that Google has changed the way to send/retrieve contact list. Now it sends contacts with: <ros:query xmlns:ros="jabber:iq:roster"/>, but should do this with: <query xmlns="jabber:iq:roster" /> which is an XMPP standard. I really don't know why they've changed this...