Homebrew ISO help

On Homebrew website it says if you have your Wii mod-chiped (I do) you can just download the ISO image and burn it to DVD. Then insert it into your Wii to install the Homebrew Channel.

I downloaded the ISO from alot of different places, but when I try and open the ISO file it says its not a valid ISO file.

I burnt it to DVD anyways to see if anything would work, but my Wii just sees it as a blank disc

Any suggestions?

What firmware do you have? If your firmware is at 3.3 or higher, the disc image for the installer will not work.