Like I said I would, I'm offering some help on how to install Project: M. Actually a lot of this is just going be video tutorials found on YouTube that I have used on how to install. I think that's the easiest way to follow instructions. Now, there are two ways to "hack" into brawl. There's the Homebrew version, and the "Hackless" method. I personally prefer Homebrew because once it's installed, booting up Project: M is much faster! But if installing Homebrew on your wii is too complicated for you, the hackless method will work just fine!
First of all, pick the version of Project: M that you want:
If you've chosen the Hackless Method, the instructions are right on the Project: M page. If I were you though, I'd ALSO format my 2 gig SD card, and make sure it is set up as FAT or FAT32.
Here's an IGN article to further help you with this process:
If that's still confusing, check out this video by NinBuzz:
Now, if you're a techie, and want to go all out and install Homebrew, follow the same steps for installing the Project: M contents onto your SD card, but then follow this video by HighTeckMan for Homebrew installation:
Once this is installed, you just have to go to your wii menu with your SD card plugged into the system, start up Homebrew, choose the Project: M icon and boot up!
It should be straight forward from that point on.
If you're having any problems, let me know and I'll see what i can do to help!