To download a flyer, left click on your desired size and choose "Save Link [Target] As...", then pick where on your computer you want to save the file and print away. For best results (especially for the 11x17 posters, which most people probably don't have printers for), it is recommended that you take the file to any paper printing business (Office Depot, Kinkos, etc)...
8 x 11.5 (letter size)8 x 14 (legal size)11 x 17 (poster size)