I found out about the installation order and put in Tribunal. When I got all the way through, I tried to register the game and it didn't work. I found out about the order and then put Tribunal in. I got it to install correctly up to the point where it asked me to register. So I went to the website, filled out the registration form (selecting the game as "The Elder Scrolls: Tribunal"), then closed the Internet window after hitting "Submit". I went back to the installation screen and hit "Finish". The window automatically closed, and when I looked at my desktop there was no icon. So I went into the Start menu and went to All Programs, and clicked on the Bethesda Softworks folder. It wasn't there, either.
So I reinstalled it and then this time tried to register it as "Morrowind: Goty Edition". The same thing happened again. Does anyone know why this is happening and if so, how do I fix it?