Make sure you Wii is connected to the internet
Extract contents to root of SD card
In Priiloader choose the Load/Install option
Navigate to boot.dol and choose load (not install)
Choose to Load IOS36 (if IOS36 doesn't work try IOS249, 250, 222, 223) If none of these work you will have to use trucha bug restorer to continue.
Choose to install IOS60 v6174 from NUS - say yes to all 3 patches
Backup to the previous menu by pressing B on the Wiimote
Choose System menu
Choose to install SM 4.1 for your region from NUS
Note: Make sure you reinstall Priiloader immediately after completing the above steps. This is what saved you in this situation.