Re: first less than good thing.....
For most people, Ubuntu is very easy to install and set up. Don't expect it to be just like Windows, though - Linux, and specifically Ubuntu, are very different!
To answer the question everyone else missed, software for Ubuntu is downloaded using Ubuntu Software Center, not from your web browser, so don't worry about downloading additional software until you are running Ubuntu.
I try to treat the cause, not the symptom. I avoid the terminal in instructions, unless it's easier or necessary. My instructions will work within the Ubuntu system, instead of breaking or subverting it. Those are the three guarantees to the helpee.