Ok, I did some homework. Found out how to load a WAD manager and uninstalled WiiGator. Now I have a new problem.
When I boot up with a SD card in the Wiikey reader I see the GameCube logo in the system menu. Same as always. Now when I click on it. I don't get the "backup loader v0.2" screen but I don't get the Wiikey Loader screen either! Just a blank screen, forever. I searched the forum and the other people reporting a "black screen" with the wiikey only get it after selecting a game as far as I can tell but I'm not getting that far.
Any ideas would be greatly appriciated.
Nevermind. I decided to try a NAND restore and start over. This time I deleted the WiiGator WAD from the SD card before starting and I'm all golden.