How to save as Wallpaper
PC Users
When you have loaded the proper size image, place your cursor on that image as displayed in your web browser and click the right mouse button. From the popup menu that opens select: "Set as Wallpaper" or "Save as Background". The image will now be displayed as your background image [Windows 98 or higher] .

Mac Users
When the proper size image loads, drag and drop it onto your desktop. Open "Apple" > "Systems Preferences" > "Desktop and Screen Saver" and click the "Desktop" button. Click on "Choose Folder". Click on "Desktop", then select the .jpg file you have chosen.