Oh no, don't be sorry! Everyone has to start learning somewhere. It's likely you downloaded a CV version of Teto, which would be why the following notes don't work. CV doesnt have the vowels/spaces before the Hiragana. It's a lot of work to convert manually, so there are plenty of plugins to do this kind of thing with one click. You probably want to use iroiro:
https://ux.getuploader.com/bizz_v/download/182
To use it, select all the notes you want to convert, go to "Tools" > "Plug-ins" in the top bar menu. If you can't see the plugin, try to press the "Reload (R)" option in that submenu. Once it loads, select it. You can change the interface to English this way if needed:
(Thank you to
Kiyoteru for the gif!)
Then you want to select "VCV -> CV" and it should convert the note lyrics!
Of course, you can also go back and make sure you download a Triphone/Continuous Sound/連続音 Teto VB and it will work on this UST without having to edit the notes.
Edit: Speak of the devil! Hey KLAD, thanks as always!

FWIW Kiyoteru's method is obviously much simpler, so just do that.