Burn this disc
Load it via savemiifrii, then finish chapter 2.
Do you have a kor wii shop account? If you do it needs to be deleted prior to doing the region change. You have already started the region change, if your shop channel does not work, you may need to region back to kor to delete the shop account and then region change again. Or don't used shop
Edit- actually if you need to delete the kor shop account just set the language to english in arc, then delete the shop account for kor, then change all the region settings to usa/euro in arc, then priiloader.