Please help, people!

I extracted my Animal Crossing City Folk file using SaveGame Manager GX, put it on an SD card and edited it with AC Toolkit. I then deleted the original file on my Wii. I tried to install the file I had edited, but neither Gecko or save-installer would work. The file seems to only be 4 memory blocks instead of 36. Did I make a tragic error? I still have the original file I extracted and it does not work either.?