I just tried to install IIg on my laptop. It seems to have worked, but there were issues. The program couldn't find several files during the install process, but still seems to have worked. What did not was the config part where it looked for a template file. I had no idea what that was about, so it just stopped right there.
I can call up sqlplus on the terminal. It asks for my user name. I tried using the user name on the computer. It doesn't like that.