Comment 33 for bug 552653

$ apt-cache policy jockey-common
jockey-common:
  Installed: 0.5.8-0ubuntu7
  Candidate: 0.5.8-0ubuntu7
  Version table:
 *** 0.5.8-0ubuntu7 0
        500 http://archive.ubuntu.com/ubuntu/ lucid/main Packages
        100 /var/lib/dpkg/status

Works for me - thanks for the fix.