design>>template designer>>layout. Select a body layout with no side bar at all. Select a footer with 3 compartments. Click "apply to blog" to save changes. Click design, drag and rearrange all your gadgets into the footer.
design>>template designer>>adjust widths. Slide the pointer to extreme right (1000px) Click "apply to blog" to save changes. You will now have a blog which is exactly as wide as this one. Please scroll down and click on [home] to see maximum sized images.