You sure you're not on 4.2? Unstubbed cIOS issues are a 4.2 issue, you can confirm this in Wii Options > Settings > top right-hand corner.
As we aren't familiar with guides from random sites on the internet, the best place for help on your guide is on that site. Otherwise, you're welcome to peruse the guides on this site by pressing the Tutorials button at the top of the page. Some links below for you to get started.