Using Magic Mouse with Windows 8.1

Because of my work, I have to use a Windows 8.1 computer even though my personal preference, which I use at home, is a late 2013 Mac Pro (a pretty awesome machine). I have purchased a Mac wireless keyboard and Magic Mouse to use with the Windows box. The keyboard works great but I'm trying to find drivers for the Magic Mouse so that I can use vertical scrolling with it. I found this site: http://pcabletech.wordpress.com/2013/02/14/apple-bluetooth-wireless-keyboard-win dows-8/ which describes a pretty lengthy process for accomplishing this. Would anyone happen to know where I can simply download the appropriate driver to make this work?

Thanks,

Louis