Fixed it by reinstalling software-center using .deb from this page: http://pkgs.org/ubuntu-11.10/ubuntu-main-i386/software-center_5.0.1.4_all.deb/download/ via dpkg. Then I had to clean the broken dependencies by installing all broken packages from online available .deb files located @ http://pkgs.org.
Fixed it by reinstalling software-center using .deb from this page: http:// pkgs.org/ ubuntu- 11.10/ubuntu- main-i386/ software- center_ 5.0.1.4_ all.deb/ download/ via dpkg. Then I had to clean the broken dependencies by installing all broken packages from online available .deb files located @ http:// pkgs.org.