I just downloaded version 12 and after finding out that I had to burn the ISO to a CD (my Win XP computer did not have any burning software on it), when I insert the disc it just wants to run a demo. I want to do a full install (totally replace WinXP and have only Ubuntu). What's the trick?
EDIT: My PC is a clone, built in 2006 by a local PC shop, has an AMD Athlon processor and a Benq CD drive. It runs really slow using Windows XP. I have previous experience with some older PCs - I have installed Ubuntu in the past (I think it was version 10) and it breathed new life into them. I even used one of them for writing an article comparing OpenOffice to MS Office and did a little Drupal development work on it, even after it seemed the computer was essentially dead with Windows.
Anyway, it looks like it is too old to upgrade to Ubuntu so I am giving up on this. Thanks for all of your help. If there is any way to close this post, please feel free to do so.