The rest of that post explains exactly how to do that.
It does, but for the less computer savvy, more specifically the command you need to type to navigate is "cd FolderNameHere", which only works if the folder directory you're currently in contains that folder. So in that example "c:\users\YourNameHere>" is essentially the same directory system that your normal Windows based "explorer" uses, except without a graphical interface for the folders and files.
So say your username on your computer is Kevin(using my own name for this example...), it would be "c:\users>" so you'd type "cd Kevin" to get to the "Kevin" folder("c:\users\Kevin>"), and to go to the desktop you'd type "cd Desktop" and it would change your directory to "c:\users\Kevin\Desktop>", and so on for each other folder. To go backwards to the previous folder it'd be "cd.." I believe(Just in case you go into the wrong folder or something...).
If you're still iffy on what you're doing, google search for "DOS commands" or something like that, since the Command Prompt is basically Microsoft DOS, and uses the exact same commands.
Jeeze... It must have been over 20 years now since my first computer, and I still remember how to use DOS... You young whipper snappers have it easy with your fancy Windows 8 and your giant flashy icons to click on... In my day, we had to navigate to every file/folder/game with commands like the ones above, and we LIKED it...