I copied the code before deleting the comment slashes... so I guess I'll use again the 10 MHz crystals, setting the SPI divisor on the 18F452 to 4 and the K value on the CS5463 to 4 as well.... I'll t ...
Using the PICKIT3 I already tried to use the code CCS gives, but it will never work. Setting those fuses and not using the main.h header file created automatically fixed the problem.
I'm currently working on the communication between the CS5463 chip (http://www.cirrus.com/en/products/cs5463.html). I have messaged the guys over Cirrus, but got no answer.