New
#11
Both of those come with an installer, that's why you didn't see it, so you will have to install it first to gain access to the msstyle, the installers also add icons by replacing the imageres and shell32 dll's so if you don't want the icons when using the installer, you simply delete those 2 dll's before you run the installer.
Once you have run the installer the theme will automatically change to the new one and all the files are then located in c:/Windows/Resources/Themes.
Good luck.