sharing a different url than the current shown on browser

Can you explain what you mean by in-session and out of session URLs? I'm not really sure what you mean. If you can give examples using relative paths (you don't need to include the domain), that would really help as well.

As for the {SCOpenGraph url=..} tag, again, that only sets the URL for the current page. If a Like button is sharing *the current page*, the og:url will be used as a redirection to a different page instead. If your Like button is trying to share a different URL (not the current URL) the og:url tag on the current page will have no effect on the share. You'll need to set the og:url tag on the page that is being Like'd.

I hope that helps,
Alex

Pawan,
To do what you're looking for, on the maslowed.me/index.php?option= page, you want the following:
* The share/like button on that page should point to the guest page:That will make the Like button on the page refer to the guest version of the URL. This is the most important piece. The Like button on that page needs to be for the proper URL. If it's for the 'current' page, it won't work.

* An og:url tag pointing to the non-logged in (guest) page:That will make any share's or Likes that point to the index.php.. page redirect to the guest page. However, since this is a 'logged in' page, Facebook will likely never see those tags since it can't scan the page. It's still recommended to add the proper tag to it though.

I hope that helps explain,
Alex