heres how:
after you beat MP3:C, you wil get a screenshot of it on your wii message board. it will be on the page that has the date of the game's completion.
go to the pic, then email it to your internet email
then upload it to photobucket and show it! ill be doing mine later today
I don't have the screen shot tool, because I don't know anybody who has MP3. :'(
Las time i checked it said you can only send it to other wii consoles... ill check again tho