Pos, send, like image

Ratna,
There's a few ways to set the image for a page when the Like button is clicked:
* If there's a Open Graph plugin available for the extension that is rendering the page, like Joomla Content, K2 Content, EasyBlog, etc, install and enable that plugin. It should automatically select an image on the page for the Like button
* Add the {SCOpenGraph image=http://yoursite.com/link-to-image.jpg} on the page to set the image for that page. You can use PHP code to dynamically set the image as well.
* In the Open Graph -> Settings area, you can set a default image (like a logo) to be used site-wide if an image isn't specifically set on a specific page.

As for a post action, there's a few ways to do that. I'm assuming you are (or have a) developer? Do you want to have a popup appear with a predefined message that the user can edit and then hit "Post" whenever the user submits a quiz or something? Or, do you want the post to automatically happen, like "John took a quiz" with a link to the quiz?

Let me know, and we can help you understand how to do it with JFBConnect.

Thanks,
Alex

In the configuration area of Open Graph in the big blank box, simply add:
image=http://yoursite.com/link-to-your-logo.jpg
There are more directions on the page as well that should clarify things if you need it. Once added, you don't need to do anything on FB to activate it, but it may take a few days for Facebook to 'see' the new image. You can use their URL Debug Tool to test a page to make sure it works though:
developers.facebook.com/tools/debug

Let me look into the post thing a little bit and get an answer back to you soon.

Thanks,
Alex