NOOB question please help!!!!!

So i followed every step by step instrutions to put this on my wii, every time i try and go to the sd menu it ends up freezing everyting up.
I have the (boot.elf) on my sd and i have tried every single one of the bannerbomb files but they all do the same thing and freez my system up...can anyone help me?

go to system settings>data management>channels>sd card then insert your sd card
its not with the sd card menu

If going through data management screen doesn't work, have you thought about trying the SSBB Stage Builder exploit?