Not sure why you were directed to that option when your wii is already modded.Yes it will. That's not the only way to do it and if your wii is already modded you don't need to do this.
Just install cIOS236 from Ciles Hermes and wanin cIOS wads thread. You already have cIOS so there is no reason for you to use that method. You can use your existing cIOS to install any new cIOS or patched IOS you want.
will you please read the first page and then tell me if i need that