to install the slipknot skin
unzip the files to C:\Program Files\Stardock\WinCustomize\BootSkin\skins\slipknot
bootskin.ini can have a password i am not sure if it is 
if it is then you go to the website http://www.freewebs.com/kevinrobotarena/bootskin.ini
then you can download the file and then you put this in the slipknot folder
and then start bootskin en it will work 