Hey everyone, I put together what I hope is a basic how-to video on hacking with the USB Gecko using Mario Galaxy to explain the basic use of the device in BSoD Episode 24.
BSoD Episode 24 (http://www.bsodtv.org/node/12)
Either way check out Dexter0's kick ass documentation and tutorials: Wii Hacking and more. (http://members.cox.net/dexter0/)
Enjoy.