wesnoth in gutsy-backports does not have required dependency

Binary package hint: wesnoth

The wesnoth package currently in gusty-backports (1:1.4-1~gutsy1) depends on wesnoth-data = 1:1.4-1~gutsy1, but this dependency is not in the gutsy-backports repository.

Attempting to install wesnoth (with gutsy-backports included in sources.list):

kkallio@sylar:~$ apt-get install --recon wesnoth
E: Could not open lock file /var/lib/dpkg/lock - open (13 Permission denied)
E: Unable to lock the administration directory (/var/lib/dpkg/), are you root?
kkallio@sylar:~$ sudo apt-get install --recon wesnoth
Reading package lists... Done
Building dependency tree
Reading state information... Done
Some packages could not be installed. This may mean that you have
requested an impossible situation or if you are using the unstable
distribution that some required packages have not yet been created
or been moved out of Incoming.

Since you only requested a single operation it is extremely likely that
the package is simply not installable and a bug report against
that package should be filed.
The following information may help to resolve the situation:

The following packages have unmet dependencies:
  wesnoth: Depends: wesnoth-data (= 1:1.4-1~gutsy1) but it is not going to be installed
E: Broken packages

The current policy for wesnoth and wesnoth-data:
kkallio@sylar:~$ apt-cache policy wesnoth
wesnoth:
  Installed: (none)
  Candidate: 1:1.4-1~gutsy1
  Version table:
     1:1.4-1~gutsy1 0
        500 http://ve.archive.ubuntu.com gutsy-backports/universe Packages
     1.2.6-1ubuntu2.4 0
        500 http://ve.archive.ubuntu.com gutsy-updates/universe Packages
        500 http://security.ubuntu.com gutsy-security/universe Packages
     1.2.6-1ubuntu2 0
        500 http://ve.archive.ubuntu.com gutsy/universe Packages

kkallio@sylar:~$ apt-cache policy wesnoth-data
wesnoth-data:
  Installed: (none)
  Candidate: 1:1.2.8-1~gutsy1
  Version table:
     1:1.2.8-1~gutsy1 0
        500 http://ve.archive.ubuntu.com gutsy-backports/universe Packages
     1.2.6-1ubuntu2.4 0
        500 http://ve.archive.ubuntu.com gutsy-updates/universe Packages
        500 http://security.ubuntu.com gutsy-security/universe Packages
     1.2.6-1ubuntu2 0
        500 http://ve.archive.ubuntu.com gutsy/universe Packages

To resolve this broken dependency, the correct 1.4 version of the package wesnoth-data should be added to the gutsy-backports repository.

Requested information:
kkallio@sylar:~$ lsb_release -rd
Description: Ubuntu 7.10
Release: 7.10

Karn Kallio