Wiigionfree only works on iso files . Regular drives (non lg-(specific models)) will not be able to read wii disc . If your wii was modded you could use WiiDumper to rip the game via wifi then use Wiigionfree . Then again if your Wii were modded region wouldnt be an issue .
PS edit your title to "Convert NTSC games to PAL" as its against AD rules to have a title "PLS HELP"
A modchip does allow you to boot region-free games, however the modding me & RastaDave are talking about is softmodding, where you use free software, downloadable from the internet to mod your wii. Depending on your wii's firmware version you can follow different guides for softmodding.
You cannot use freeloader, then. If you want the easy way, just get rid of the game & buy it in your own region & save yourself the trouble. The hard way would be to softmod your wii.