emacs-version"24.0.50.1" <--too vague always
tramp-version"2.1.19-pre".
$ apt-cache policy emacs-snapshot 
emacs-snapshot:
  Installed: 1:20100724-1
  Candidate: 1:20100724-1
  Version table:
 *** 1:20100724-1 0
        500 http://emacs.orebokech.com sid/main Packages
        100 /var/lib/dpkg/status