Whenever I start this up It goes through the first loading screen but then I get a black screen. The wii is still running though. Halp?

So I have The Homebrew Channel and Gecko OS installed on my SD card and everything is working just fine. I start up Brawl one time and then turn off the Wii. I then put my SD card back into my computer to put on some hacks, but under the "private" folder of the SD card there is "wii". But when I open "wii" there is nothing in there. So I have t create the folders myself or is there a way to make them appear