Nvm, I've solved the problem by my self finally. Think i have googled half the internet and read a lot of guide's. Allso managed to brick the wii even more, but solved that to.
But my main problem with the wii menu freezed and had corrupt errors all the time was easy fixed, (once I figured out how to do) all i had to do was a NAND format. Now the wii runs/works as it was brand new!
Excellent guides and stuff here on wiihacks, without them I would never have solved my problems with the Wii!