My thumbshots don't show up on my site. Also, I tried updating my valid domains and received an error. I have the expensive premium account ... why won't they show up?

Am I doing something wrong? I put them in a two column table inside my web page.

http://www.r-o-p-e-soffice.com/index.php?option=com_content&view=article&id=33&Itemid=41

Thanks for your help.

Linda.