Iphone Posting on wall with FBConnect

I am using the latest facebook sdk. Everything works fine even the post on wall feature. Thing is that the post to wall dialog contains minimal information. Just a textbox and a small label reading "... via app-name".

I have used the sample code snippet which provides things like 'caption' and 'description' but these are NOT shown in the post to wall dialog.

I have seen other apps with captions, descriptions and even a large image attached to the post.

How can I show these objects (caption, description, image etc..) usi开发者_JAVA百科ng the facebook sdk ?

Thanks

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I don't use the Facebook SDK so I just send POST requests with the necessary values. Similar to this: Posting on Facebook Tutorial

There's another tutorial on the same blog that does use the SDK: Posting with the Facebook SDK