Yes. With the Bannerbomb exploit, you can now install the Homebrew Channel just by placing a carefully instructed save file and a program (for installing the Homebrew Channel, use HackMii) on an SD card.
Yes you must
No you can't. Before getting the homebrew channel, the only way to transfer data to the wii is by SD card, unfortunately. The usb ports in the back can only be used for wii controllers and ethernet adapters (until you get the homebrew channel, of course).
Yes, but you must install the Homebrew Channel and a USB loader.
Yes but it's not official software and you need to exploit a glitch in a specific game or the Wii 4.2 firmware to install it. Search on YouTube for installing the homebrew channel on [whatever version you have].
BANNERBOMB Google Search it
go to www.wiibrew.org i would just go online on the computer and download(onto sd card) and run "homebrew browser" on the wii
No, the Homebrew Channel is free. If you did pay, you were scammed.
Yes, there are more methods of installing the Homebrew Channel than with the Twilight Princess exploit. Super Smash Bros. Brawl can also be used, where you put the Homebrew Channel on the SD card and load the Stage Builder (with all custom stages deleted) in order to install it.
To my knowledge, homebrew is a channel you can get that lets you make texture hacks.
Install it without his permissions and place it on the last page :D
Go to www.wiibrew.org and click on "Homebrew Setup." Read the instructions there. Wiibrew is the official wiki for the Homebrew Channel. I just went to google and typed in "smash stack instructions" this will work on any wii firmware, trust me, i have 4.3u and used smash stack and it worked.