Very sorry for the delayed response on this.
The response they replied to me states that image does not show on timeline, but we do not control whether the image post on the timeline, we can only see that it post to the FB activity log. (States this in one of the videos)
There's a note in the videos about it being called an 'article', but the image should actually show in the Timeline. Without that, it's understandable why the action isn't approved.
Can you tell me:
* What image is being posted? Is it an incorrect image, the default image from JomSocial, some blank image, or the album cover image?
* Is the image publicly accessible? If not (if it's in a private album), then Facebook's Open Graph scanning tool won't be able to see the Open Graph tags and the image won't work. The image would have to be public for it to be shared in a user's Timeline.
* What URL is the action linked to? It should be the image or the album cover (I can't remember which). Check that that link works even if you aren't logged into your site.
Let me know if any of the above helps or the answers to the above questions, and we'll gladly look into it further.
Thanks,
Alex