Facebook FQL query to return all comments against an application

Question

Possible Duplicate:
Retrieve all comments with FQL by application ID

Evening,

I was wondering if anyone knows how to use FQL to return all comments associated to an Application. The app_id.

select text from comment where ????

Based on changes by facebook, the new fb-comments don't have the XID value so this is not an option.

The only place I can see all comments is using

http://developers.facebook.com/tools/comments?ID=

But I would like to query all of the application comments using FQL.

I can't use the URL, because it is different depending on where the comment was posted.

Any feedback would be great.

Thanks

Chris