Icon packages that provide full support for Windows Vista are few and far between. That's because they require significant effort. What, with the 256x256 pixel resolution for every icon and having to make folders in a special way to support live folders, it's a lot of work.
Luckily for all of us, Quentin94 has released his Arileen icon package updated to support Windows Vista completely. It has 209 different icons in the icon package. Check it out!