Removing sidebars

I have just finished a website and noticed that the home page displays correctly however the second page seems to have a sidebar on the right and the page is skewed to the left. We aren't using sidebars, so is there anyone that can help me go full width with the second page please. I have been in the forum before under a different username but catchthemes would not let me log in with my original username astro303 as I wanted to thank someone for helping me with another issue. I had to create a new one. It wouldn't send me emails for forgotten password either. Thanks