Facebook not displaying correct product images

[archproject]

Hi there,

 

I have searched the forum for anyone who has the same issue as I am but failed to find any. When I copy and paste the Product URLs in my shop into facebook, I would expect to see the product's default image to appear but unfortunately some of the products URL did show correct product images but most of the time it didn't show any images, a different image from the page is use or even only show the domain name only. I have tried to turn on and off the friendly url but that didn't work.

 

I was using shareholic.com to put a button on every page and that also gave me the same results

I have put a facebook like button on the product's pages and that didn't work either.

 

I am just wondering if it is because of Facebook open graph thing ... that I do not really understand. I tried reading through the documentation but to no avail I was dumb struck. I hope to see someone here to help me with this. If there is someone out there who can help me with this I would be much appreciated.