krofna@home:~$ apt-cache policy unity compiz
unity:
  Installed: 6.8.0-0ubuntu1
  Candidate: 6.8.0-0ubuntu1
  Version table:
 *** 6.8.0-0ubuntu1 0
        500 http://archive.ubuntu.com/ubuntu/ quantal/main amd64 Packages
        100 /var/lib/dpkg/status
compiz:
  Installed: 1:0.9.8.4-0ubuntu1
  Candidate: 1:0.9.8.4-0ubuntu1
  Version table:
 *** 1:0.9.8.4-0ubuntu1 0
        500 http://archive.ubuntu.com/ubuntu/ quantal/main amd64 Packages
        100 /var/lib/dpkg/status
krofna@home:~$