I have installed the helpdesk 1.2 but am still having some issues I'm hoping are an easy fix today. I'm confident the first issue has something to do with my db.php file but after trying a number of options I still can't figure it out. It would help if I could send you screenshots or the file, maybe I can respond to an email with those once I hear from you.
FYI, on the install screen everything was on the server was green and setup properly. Here is the login so you can take a look.