Need Help with Project M on Dolphin

[windhunter7]

So here's what happened. I have an NTSC .iso of Brawl that I uploaded to my computer to my Wii, and I have Dolphin. Now here is what I did, trying to install Project M on Dolphin:

I got both 4.0 and 4.0.2 versions, trying each of the following steps on each of the two Dolphins.
I set Brawl as the Default Iso
I created the sd.raw and modified it successfully to include the latest "Homebrew Option ZIP (Full Set)" from
                ProjectMGame. I then put it in the directory My Documents -> "Dolphin Emulator" -> "Wii".
I downloaded the program from this URL: http://wiibrew.org/wiki/Gecko_OS
I opened the boot.elf with Dolphin, and then set the HookType to "AXNextFrame", clicked the thing that
                saves the changes, and then pressed 'B' to go back to the menu.
But, when I click on "Launch Game", it says that there's no disc. Did I miss something, or do something
                wrong?

[SonicBrawler]

did you make sure to enable sd card

[windhunter7]

Yes, I did.