Sorry things are not working out for you hetfield.
I just recently followed jhb50’s guide this past week and I’ve had no issues whatsoever. I have succefully compiled WiiMC with and without jhb50’s enhancement pack, and even my own version now, which shows video cover art.
This is my first experience with devkitPRO and I followed the guide to the letter on a Windows 7, 32bit Dell laptop (2.2Ghz Core2Duo, 4GB ram).
One update however, would be to include a note to configure & compile liba52 if using WiiMC v1.05 source code.
Thanks for the guide jhb50!