I've been downloading text files from Wiird and putting them on my SD card since my Wii isn't connected to the Internet so I can't use Code Downloader. When I open the text files with Wiicm on my Wii, it doesn't show any codes. And when I press the home button to exit, it freezes and I have to turn off my Wii. How can I fix it?

I've been able to export the text files as gct files on my computer, but it would be a lot more convenient if I could manage the codes on my Wii. Any help is appreciated.