Ok so I know this post is almost 2 years old, but I'd like to clarify a couple of things...

I have a more detailed post explaining the issues I'm having with old friend codes and Wiimmfi in their forums, but my other option is to attempt to erase it altogether so Wiimmfi can generate a new one. I can get the save game using the extractor tool, but what do I use to edit the hex values? The ACToolkit? Do I just zero out the fields or...?