Facebook widget

Morning everyone!

Ok... I have 6 items available to hire on my page. I have a social network widget next to each item for people to share/like. I also grouped the item image and widget together in webplus6 (dont know if that makes a difference) i have tested he social network widget but out of the 3 images to choose from, it never offers the actual mage of the item i want to share. Is there a way round his so the image shared is always the image of the item?

This is the page i'm talking about....

http://www.whitleybaybouncycastlehir...nflatables.htm

Thanks in advance! Have a great day!SM:HELP