'sudo add-apt-repository ppa:qutim/qutim.svn', 'sudo apt-key adv --recv-keys --keyserver keyserver.ubuntu.com', etc do not work via proxy at my Ubuntu 10.04 as well...
'sudo add-apt-repository ppa:qutim/ qutim.svn' , 'sudo apt-key adv --recv-keys --keyserver keyserver. ubuntu. com', etc do not work via proxy at my Ubuntu 10.04 as well...