Great! Should tell you one more thing: It's a Wii specific one, so It has the words "Wii" On it; Just in case that means anything.No! In fact you're fine. As I'm about to say to Rubberbandman, the most common problem is it's an SDHC (>3GB) and won't work, but you're good.
What codes do you have enabled in your GCT?
So far, I've only used the Orcarina Code Manager to add in the File Replacement Code (3.5.1) - Don't have any other GCT's/Codes/Etc's enabled, and I'm not quite sure what you mean by GCT's there.