I can basically answer all those questions for you. First off when ever dealing with a softmodded wii, you should always have bootmii and preloader installed. I only have bootmii installed since I have starfall instead of preloader (but thats nothing you need to worry about. Preloader when installed sets itself before the system menu so if you ever brick, you can still enter preloader which can then take you to the homebrew channel (totally bypassing the wii system menu) to where you can use wad manager and any other program you need to unbrick your console. Preloader can also be set up to bypass/block disc updates (which you need to do) and also depending on the firmware you are using it can also block full system updates which is very bad for softmodded wiis. Bootmii on the other hand is a program that can also unbrick you. It can be installed as 2 ways: boot2 (which is the best way) or an ios. I was able to install mine as boot2 so I know nothing about ios. If you bought your wii prior to october of 2008, you would be able to install bootmii as a boot2. When installed as a boot2, you can backup your nand files (basically the "guts" files for your wii) and have it saved onto an sd card. If you ever brick, simply pop in that sd card which will start up bootmii on power on and then transfer your nand from sd card back to your wii. Really you would only need bootmii if you had a full brick. Theres other bricks (banner bricks) which doesnt hurt your entire system and can easily be fixed without needing bootmii. Dealing with wiiware games, you will need certain ios' in order to get those to run. You can find out more on this site maybe in the tutorial section. There is also a thread on here that has all the wiiware and VC to date which you can downoad for free. They get installed via wad manager. Hope this has helped and if so, press the "thanks" button.