If you have come here looking for a way to install Skype, visit this post instead.
By sheer coincidence, I got my hands on an Asus EeePC just in time for the Ubuntu 9.10 release. Given the state of Windows XP on it, I was left with no option but to do a clean install of UNR.
The netbook was virus infected and was crashing as soon as it booted. Not even the safe mode command prompt only worked! So I decided to wipe the factory installed Windows XP and install UNR instead. It did take a bit of time to find out what to be downloaded and how to install.
The guide at https://wiki.ubuntu.com/UNR/Installation/Easy suggests that the img file be downloaded, but there is no img file for the Karmic release.