please, please, please, don't follow random youtube tutorial.
thanks...
so, here the things:
1- your USBLoader is very old (2.0? or even before). look in my signature, there's the latest revision (r1256 instead of 800)
extract the zip to your SD and it will replace the old boot.dol and meta.xml located in /apps/usbloader_gx/
2- like I told you, converting to FAT32 will place games in subfolders which are NOT seen by the loader (hence why you get 0 games)
You NEED to use WiiBackupManager to automatically rename the folders correctly.
(though, I updated the loader not long ago to work with GameID only... it should detect games without this step, but do it anyway, it's a lot cleaner)
- launch the program
go to settings and set this:
- option > title > use title > use WiiTDB
- option > title > download titles.txt
- option > title > use Wiitdb titles.txt for file and folder name
- option > FAT32/NTFS > naming style : Title_[ID] (or "Title_" with the underscore! if you don't see the "[ID]" part, it's a bug)
- option > FAT32/NTFS > automatically update storage convention when drive is mounted (<---- this is what will rename ALL your existing folders automatically)
Save and exit the settings.
Now go to the HDD1 tab, and select your drive letter in the drop down list.
Done ! (existing folders were just renamed for you

)
3- Like I said too : If you still have 0 games, you will likely have to refresh the partition information in the loader if you didn't delete the configs.
Go to settings > HDD menu > Click on the first option to refresh the partition info and detect FAT32 instead of WBFS format.
4- If you had a very old USBLoaderGX version, you probably have a very old softmod too !
You might have to update your cIOS, but DO NOT FOLLOW YOUTUBE !!!! please, stop that.
if you need help, ask here, NOT ON RANDOM SITE. please, save us the trouble to fix your console because you think youtube is great.
5- You are talking about the "wad" and "channel".
If this is the forwarder channel, maybe it's the old one and you might have to update it.
if this is the Full channel, it's not used or updated anymore, please delete it and install the forwarder instead.
please, let us know what you did and what works or not at this point.
Thanks.