This process will NOT copy any of your roms, games and saves from the main SD card to the secondary card. It will just create the structure for you. You'll need to copy those yourself. You can use File Manager from the Options menu to do this or copy them manually from your computer...
Once completed, you can then verify that your wifi is connected by pressing the start button and reviewing theSSID:info at the bottom of the menu. You can also verify that you have a valid wireless connection by pressing start and looking at the bottom of menu next toDistro Versionor by ...