I've come across a couple problems with this:
1) When using Wii Scrubber to extract the stage, it says 'Error in saving file' and the resulting file is 0kb. I've done the KeyBin.
2) I downloaded the training level and tried to replace it in place of level 01-02. No errors came up in Wii Scrubber, but when trying to load the game it only gives a black screen.