It's okay dude..... This is what the Hacking Support thread is for.
First, find where your SD Card is on your computer. You have a SD Card reader, right? When it's plugged up, it will appear on the my computer screen and be labeled as "Removable Disk". Well, for me, at least.
Click on apps/gos-hbc-dol/pc/codemgr. It should open up a window. From there, click on file/open TXT file/rsbe. rsbe is SSBB's ID.
Choose the codes you want on by clicking on the boxes. Make sure not to go overboard.....
After choosing your codes, click on Export to GCT. Where it says Drive Letter, change it to your SD Card's name. Then click on export. Then power up Gecko OS. And your'e good!