
Issue the following commands inside a terminal:
echo 'deb http://ppa.launchpad.net/apachelogger/ubuntuone-kde/ubuntu karmic main' >> /etc/apt/sources.list echo 'deb-src http://ppa.launchpad.net/apachelogger/ubuntuone-kde/ubuntu karmic main' >> /etc/apt/sources.list sudo apt-key adv --keyserver keyserver.ubuntu.com --recv-keys 4427DF3B
Open KPackageKit and install the client: "ubuntuone-client-kde"

There should be a Ubuntu One icon in the start menu, under Applications, Internet. Click on the Ubuntu Icon.
To use: simply move files to the Ubuntu One folder that lives under your home folder.
