1. http://gbatemp.net/t188295-wii-backup-manager-for-windows - format to fat32
2. it removes junk from the ISO and scrubs it
3. in the root of your drive in a folder called WBFS
4. nope, i use CFG usb loader
5. Nope
6. yes
7. depends on the games, how much is scrubbed, etc...
8. not sure, that's...