I feel the need to stress that
If your Wii is being used as a tournament set-up at any point during this event, then you need to back up your custom stages or be content with losing them.
For simplicity's sake, the easiest way to use our replay system is to launch the codes through stage builder. Regardless of whether or not you have Gecko OS, we'll be using the stage builder to launch it (Note: You do not need Homebrew Channel or any other utility on your Wii for our codeset to work). This means we must delete all the custom stages saved to the Wii in order to use it. Back them up to a personal SD card or remake them later (it's really not hard).
I thought this warning would already be posted in the OP, so I'm sorry for the late head's up.
If DRN could please add a tag line under the ASL heading with a similar warning, I'd appreciate it rather than have people yelling at me for it later.