Just answer the question and follow the modmii guidelines to the letter. If you are unsure about something, just ask.
You are aware that you need an original exploitable game to softmod a wii with systemmenu 4.3?
Make sure you take a backup of your wii nand with bootmii. Store it on a safe place (burn it on a cd or something.)
Basically, you need bootmii, priiloader and the homebrew channel. The first allows you to take your nand backup. The second protects your softmod against online updates
and the third allows you to run pretty much anything like wiiflow. The programs do more than that, but it are the basics you need them for.