server

I have a question for someone out there.  I have a server 2012 but downgrading to 2008 R2 but when I put the media disk in and go to install, it want the drivers for the server.  I have downloaded them to a usb drive and then unzipped them but when I click on load drivers it sees the folder, then the x64 folder but not the files that are in there, can someone tell me why that is.  I have upzipped it all the way. I can see them when I go into the usb drive and the folders where they are at.