Here you can download some of most used Windows Vista Wallpapers, especially these can be also used in XP/Windows 7 computers and laptops. They all are high resolution images and will also fit your wide screen laptops & computers.
IF you are a XP user and would like to have a Vista like Wallpaper you could choose one with green leaves or even the green bamboo. [Only a small suggestion from me]
You can download the full set of wallpapers from the links given below :
[Official Wallpaper Bundled by Microsoft]
Download Windows Vista SideBar for Windows XP
The Windows Vista SideBar looks similar to the Google Desktop or that of the Mac OX 10 Widget.
Want to use a FREE Windows SideBar with a Vista look then you can download it from here.
. Download Vista SideBar [Softonic Download]
Thoosje's SideBar (Formerly Vista SideBar) is a part of Vista Transformation Pack which is quite familiar one for making your XP machine look like Vista.
Visit Thoosje Vista SideBar Homepage