Tip #1: LinuxMCE Installation
As I already mentioned LinuxMCE should be installed on the top of the latest Kubuntu Feisty. So, there are actually two ways to do that. the first one is to install Kubuntu and after that install LinuxMCE.
Note: to avoid problems with LinuxMCE installation do not apply any updates on your Kubuntu installation! LinuxMCE should be installed on the fresh system!
The second was is a bit easier. You can download DVD with Kubuntu and LinuxMCE and install them at one step.