Re: Can my laptop support Ubuntu 12.10?
Probably no issues with a laptop of that vintage. Try the live session from the DVD to be sure. The graphics will work.
You can tell the Ubuntu installer which partition to erase and install into. It brings up a screen where you can choose.
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.