It'll take a /lot/ of work for that as the ust we made took over a week to make and that's with 2 experienced ust-ers working on it nearly non-stop.
I think it'd be much easier for me to try and help you use ours, and if you need, I can change the format of the ust and re-upload to help you out ;w;/
((sorry for any trouble you're having- I really need to get around to making a tutorial or something))
Is it that the utau sounds like it's slurring? if so, Ctrl+A and go to properties, then clear the overlap and pre utterance boxes, and clear the STP box. That will change the ust from VCV format (What it's in) to CV format.
If no sound is playing at all, your bank might need hiragana Aliases ;a; //not sure what kind of bank you're trying to use
I converted the ust to romaji before (and it works but sais the sylabiles like instead os "ma" sais only "a" or something like that...) oh and my computer can't change local to japanece so when i try removing the prefix and such it removes the back notes ;o; ... i'm sorry for asking you that.. but can you convert it TTATT?