How to get the id of the post published in the facebook user's stream

Question

Hi, I'm building an iphone app which uses Facebook connect. I'm using the facebook iphone sdk. I'm able to post messages on to the user's wall. But I want to know the id of the post so that I can retrieve information about that post whenever I wish to.

Currently, I'm inherited the FBStreamDialog class and overrode the dialogDidSucceeed function. When the message gets posted on to the wall, control is sent to this delegate method with a NSURL* url. The url.absoluteString is "fbconnect:success". Is there some way to obtain a handle to the post that is published, so that I can retrieve information about it later on.

Thanks in advance, Venu