How do I stop horizontal scrolling

Hi everyone. I'm new here but not to Auctiva.

Since the malware problem and Auctiva taking down their site temporarily, my eBay auctions are require a viewer to scroll horizontally to view the entire auction. I can't seem to change this and don't know enough html to fix it that way.

Even my old, expired auctions are showing this problem, where they did not before. I do not like horizontal scrolling. I want to stop it. Does anyone have a suggestion?

Thanks