So before I start my own thread......
I also am having issues getting Ocarina codes to work. I've never tried running them until today.
What I did....
1. Put Ocarina in my sd cards apps folder (converted from boot.elf to boot.dol)
2. Put the .gtc files (only 1 code active for each game I was trying) in the \codes directory of the SD (codemanager put them there automatically actually)
3. Attempted to use the codes by setting the Ocarina option to "on" in gamma loader
Every game does the same thing as ShinraArmy described, it says "SD codes found. Applying" and just sits there doing nothing.
I've searched here and done some google searches for a simple step by step guide or requirements list for getting Ocarina to work with the boot loader I'm using, but no luck.
Anybody have any insight into the matter?