i saw you posted your question in the 4.3 guide as well. plese stick to one location, do not make yet another thread if you already asked somewhere.
as you are refering to a softmod guide from another site, no one can tell you what went wrong or what makes you think backup playing through the discchannel is accomplished by that.
the 4.3 guide or softmod any wii guide from mauifrog covers that, it is a small portion, called Darkcorp installation, but no one would really recommend that to you as it caused problems way to often. loading games from disc or hdd via a loader is much more convinient.