err, i can confirm it workign on my NTSC-U wii, wiikey 1.9g brickblocked using the MP3 trick.
HOWEVER, i think there might be a semi-brick or something.
When i go into Wii (bottom left), then Wii Settings, It takes me to a screen that says
"You tried to access the address marc:FIX/US/ENG/index01.html, which is currently unavailable. please make sure that the web address (URL) is correctly spelled and punctuated, then try reloading the page."
blah blah blah,
and it shows this instead of the regular wii settings menu (where u can change the wifi settings, display, and all that stuff).
If im not the only one with this problem, i will record a video of the problem and upload it.