Could be that you cannot play backups due to a D3-2 chip. When did you purchase your Wii?
Don't pay anything though, sounds like you have most of everything installed.
You may want to run hackmii installer through Homebrew channel to get a bootmii backup and you'll also need Priiloader.
Run through one of the 4.2 guides in the tutorials section to get everything you need without paying anything, although a donation to the site would be very welcome if we save you a few dollars.