Grey images – Help me please

Hello guys, Could someone help me with something? When im trying to put a image on this theme the grey one just appears on the place of the original one, And the original one just appear if I scroll down the page. Here is how the images looks like when I post it [IMG]http://i67.tinypic.com/2nl4kt3.png[/IMG] When I scroll down the page a little bit. [IMG]http://i63.tinypic.com/2uzry1d.png[/IMG] Thank you so much for the support.