Where do I type the word "kick" in the address and then what do I do?

Hope you get an answer, I'm interested also.

http://lifehacker.com/5109597/kickyoutube-lets-you-download-videos-without-extra-software-or-hassle

Load the URL for the video in your browser:
http ://www.youtube.com/watch?v=uOgHE5nEq04

Insert the word "kick" between the www. and the youtube.com section of the URL:

http://www.kickyoutube.com/watch?v=uOgHE5nEq04

You can also download a program called youtube downloader. It will save streaming files from youtube and many other sites and also converts them to other video formats as well. And it is FREE