Files appear on computer, but not on Fuze

Let’s cut to the chase.

Download mp3tag. from:

http://www.mp3tag.de/en/

When you install it, let it add itself to context menus. Open mp3tag and set Tools/Options/Tags/Mpeg to Write ID3v2.3 ISO-8859-1. Save that so it becomes the default. 

Go to the folder of the album.

Right-click and use mp3tag (in the menu since you allowed it) to open it. 

Highlight all the files. Make sure they’re in the order you want them to play. Under Tools/Autonumbering Track Wizard choose the Leading Zeroes option.  Run the wizard. That gives you good track numbers and ID2v2.3 ISO-8859-1 tags the Fuze likes.