First of all, you have found your own solution 13 minutes after initially asking for help, if you where upset about no one contributing to this thread (after an hour in my case), it just makes you just seem rather impatient.
My guess is, the reason the tutorial doesn't state an install directory is simply because the directory for each game is usually slightly different. Most games have different sub-folders, install locations etc.
Applying a NoCD crack to PC game files on Windows is literally the same process as doing it through a wrapper. When you install the game into the wrapper, it tells you the install directory where the game files will be installed inside the wrapper - usually in drive_c/Program Files/, just as it would be on PC.
If you where upset about how the definition of 'Wrapper' wasn't shown well enough on this site, perhaps you could have looked a little better. On this page, in the 'Wrapping it up!' section, the definition/explanation of wrappers are clearly explained in detail. Also, if you had a look at one of the many other tutorials available on this website, such as this one, you can see the clear instructions on not only how to install a game into a wrapper, but how to find the game directory AND how to apply a NoCD crack properly. If you have a look on the wrapper page, you might actually find specific instructions on how to apply the NoCD crack for that game into the wrapper itself. If you click here, you can see i've provided instructions in the 'Non Steam Users' installation section on how to properly apply the NoCD crack for the game, ensuring it will work.
My point is: you could've searched the forums a bit better. And remember, Wine Is Not An Emulator.