Oh, that guide is great and I use it all the time. If you do not mind. I would
like to add more links to even more useful guides out there. With some people
that reading does good, some people are visual and need to look how to get to x
to y, and some people learn more from listing from the ear to understand.
Video:
http://screencasts.ubuntu.com/
http://ubuntuclips.org/
Sound:
http://www.linuxreality.com/
Read:
www.unix-tutorials.com/tutorials.php?os=Ubuntu
http://psychocats.net/ubuntu/index
http://monkeyblog.org/ubuntu/installing/
There is oodles of useful tips on using Ubuntu linux and how to use linux.