apt-get broken on kubuntu 12.04

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http://askubuntu.com – I just wanted to add my little stone, so I tried to do an install of "wine" on a Kubuntu installed on my laptop (amd64 quad proc, 12.04, strictly and regularly updated and maintained) which leads directly to a load of apt problems. In addition, I have now 4 different instances of graphics apps for package/software maintenance, all in submenu K/system : software update, muon software manager, Ubuntu software center, muon update manager. In addition, I still have a broken apt system, I don't understand from what... I followed the instructions given on that other thread https://bugs.launchpad. (HowTos)