How do I patch VVVVVV to 2.1?

[Epsilon]

So I'm trying to patch it to 2.1, but everything a friend has been telling me isn't working. Any help?
I'm using a Windows 8, if that has to do with anything. I already downloaded the 2.1 folder, I know where the folder where the sounds, graphics ect is, and I don't know what to do. Is it impossible to do in Windows 8? if it is i give up on life.

[Fussmatte]

BTW, "a friend" is me
This post is totally not useless.