Help Getting this UST from Nico? D= [World is Mine]

I wanted to do World is Mine. I have "Another World is Mine" but it sounds..really, really weird to me, so I went hunting. From what I read, most people get one from a "Muno" from NicoNico, and provide this link:

http://www.nicovideo.jp/watch/sm7002241

..But I know know a dang thing of what it says, and GoogleTranslate isn't yielding much.

Halp? ;-;

You see the link in the description? Copy and paste it into the URL bar and you will come to a japanese downloading site. Under the password field (with wimhiyo in it) is a button, click it. You will reach another site. There will be a link where "click here to start download" stands, click on it and save the zip :>

Thank you so much!