We don't currently have support for Like'ing a photo in JomSocial. Facebook recently changed how Open Graph Actions work in general and removed a lot of the custom functionality they once had. We supported a lot of custom actions and objects, which made JFBConnect very flexible. However, it also made it difficult to setup.
Likes are an action we want to support better so that in any extension, if a user clicks a Like button in that extension, it can get posted back to Facebook as a Like as well. It's going to take some time to update how JFBConnect works and support the limited set of Actions that Facebook now provides, and I don't have an estimate for when that will be done.
In other way, before when users login in the site using Facebook connect, a link was posted on Facebook user profile, now i can only see posting status update form facebook to the site, so what i need to do for that?
I'm unsure what you're looking for here. Can you explain more?
Thanks,
Alex