Repositories Kubuntu

Μπορεί να δώσει καποιος Repositories δικτυακές αποθήκες/αποθετήρια πηγές (λογισμικού) για Kubuntu γενικά, κ για Opera γιατι εχω φάει πακέτο δεν παίζει μου λεει κάτι για σπασμένα πακέτα???.
Κάνω Remove sudo apt-get remove opera κ μετά πάω να κάνω Update στην Opera (sudo apt-get update - sudo apt-get install opera) κ μου λεει τα παρακάτω:
Ign http://packages.freecontrib.org edgy-plf Release
Ign http://packages.freecontrib.org edgy-plf/free Packages
Ign http://packages.freecontrib.org edgy-plf/non-free Packages
Ign http://packages.freecontrib.org edgy-plf/free Sources
Ign http://packages.freecontrib.org edgy-plf/non-free Sources
Err http://packages.freecontrib.org edgy-plf/free Packages
  404 Not Found
Err http://packages.freecontrib.org edgy-plf/non-free Packages
  404 Not Found
Err http://packages.freecontrib.org edgy-plf/free Sources
  404 Not Found
Err http://packages.freecontrib.org edgy-plf/non-free Sources
  404 Not Found
Fetched 7B in 3s (2B/s)
Failed to fetch http://packages.freecontrib.org/plf/dists/edgy-plf/free/bina ry-i386/Packages.gz  404 Not Found
Failed to fetch http://packages.freecontrib.org/plf/dists/edgy-plf/non-free/ binary-i386/Packages.gz  404 Not Found
Failed to fetch http://packages.freecontrib.org/plf/dists/edgy-plf/free/sour ce/Sources.gz  404 Not Found
Failed to fetch http://packages.freecontrib.org/plf/dists/edgy-plf/non-free/ source/Sources.gz  404 Not Found
Reading package lists... Done
E: Some index files failed to download, they have been ignored, or old ones used instead.

HELP!!!