I am using the YARPP 4.0.3 version and I see that the thumbnails are not showing the images, instead it shows the default image. I have not changed the default image url in the settings. I have also installed the custom templates. Can you please help me? You can find an example here: http://www.ohtastensee.com/2012/07/22/peanut-butter-thumbprint-cookies-with-nutella-or-jelly/
P.S. I am not a programmer, and don't know CSS etc. Any help is much appreciated.