Windows Vista build 5219 is the first Reset build leaked that contains the sidebar but has to be download seperatly. It is very difficult to get the gadgets to run on the sidebar. Experimented in pre-reset builds, the sidebar was implemented up until the Vista RTM due to high demand.
No matter what you do to try and install drivers from XP or Vista on Vista build 5219, it will never work. It always say "An error has occurred."
A 64 bit version of this build is avaliable for download as well.
