I started installing Ubuntu 11.04 from a thumb drive into my home computer. This installation will be within Windows, as I am not sure if my wife will be happy about the change. I used wubi as instructed, but came up with this error message: "cannot download the metalink and therefore the ISO".
It just might be the Windows XP acting up, I thought, and so I decided to try it at the office computer which runs on Windows 7. Same error message.
A bit of research on the web resulted in a solution: place the ISO and wubi in the same folder. And so I created a folder in Desktop which contained the ISO and wubi, and left the thumb drive which contained the system generated by the Universal USB Installer plugged in.
I double-clicked wubi and it started reading off the thumb drive. And voila... installation successful!
I rebooted and when the system came up again I chose Ubuntu for my OS and it continued its installation. After another reboot, Ubuntu was live!
From a novice's point of view, the Unity interface is indeed a bit confusing. For one, I wanted the fonts to be smaller and my screen can display at a higher resolution. I also tried installing Chromium but could not figure out how to do it.
At least it's installed now. Will try it at home too so I can play with it a bit more.