Free download the official Windows 7 Wallpaper Pack from this link.The skin pack contains 40 different Windows 7 wallpapers to spruce up your Windows XP or Vista Desktops.
All the 40 skins are high resolution (1920×1200) wallpapers, suitable for any screen size and available in varied themes, design and colors. You are sure to find a Windows 7 skin that suits your taste and your XP or Vista desktop appearance. Enjoy Windows 7 Theme on your Windows XP or Vista Desktops !!!