Correct the share function on my website -- 2

Hello I am having issues on my site with the sharing of the listing. I want that when I share a listing with facebook or one of the other sites. I want that the correct picture matches up with the correct listing. TYPE 5947957 If you have read the complete message [login to view URL] I would also like the share this button to be higher on the page. I would also like that the pictures fit better into the frame with out regards to which one was loaded up. Also when someone logs in or loses password. I want that it stays only on the front page. And never takes them to the wp admin area.