I wouldn't recommend editing anything but the text, since much of the HTML was created by Adobe Photoshop and would wreck the images. If you know what you're doing, feel free to edit the CSS file to your liking. To change the links on your left, replace "Your Link Here" with the name of your link and "#" to the URL of the page you want the visitor to go to. To return to the index page, click the "De Gozaimasu!" link at the top.
This layout is viewable in browsers using a resolution of 800x600 and higher, and should function in Internet Explorer 5+ and Firefox. If there are any errors or if you have any questions, please contact me. Please only ask questions regarding the layout; I won't walk you through an entire HTML tutorial.