Thank you for your reply :)

Hi ~Z~ Man thanks for your prompt reply. a very detailed solution you got there. I know now what's behind the issue based on your solution whenever a user clicks a photo it activates the Fancybox 1.5 component that's why the user's can't comment. hahaha sorry ~Z~ Man and Arsalan Shah my bad. haha.. i install all of your component to see ossn's capabilities before purchasing it. :)

The basic idea behind is not to comment blindly any ACTION like "Wow, you wrote a blog!" or "Great, you uploaded some pics!" but have a look into and comment the CONTENT.
That's why the blog announcement on the newsfeed as well as the notice of a photo upload have no comment field directly below. Instead you are motivated to visit the blog page or the photo album and leave your comment there.

Thanks for your immediate reply. :) I mean,. but when the photo is uploaded and viewed under home page it seems that we can't find the comment section at the bottom after photo.

There is already a comment and like future for photos inside album.