Ive seen this hack around the internet, which makes you download something , then it opens up tha cmd and does something in there then supposedly make windows update download these updates

then you should be able to download vista sp1 beta

but when i get to cmd bit it says access denied

help

peeps who have done it
http://dailyapps.net/2007/10/hack-attack-download-vista-sp1-through-windows-update
help