Instead of having multiple blog posts scrolling down my home page, I want to have only the most recent one displayed with older posts available as thumbnails in rows/columns below the most recent post...perhaps with an image and short description of the post. Could I get some recommendations on how to accomplish this goal? Is there a theme I should install? plugins? Or perhaps a way I can do it by customizing the content in the Twenty Twelve theme? I am relatively new to WordPress and have been worried about using non-wordpress themes to to support and security issues.