synaptic unable to install - broken dependency samba-common

Binary package hint: samba-common

When trying to install samba-common by the package manager, I get
'E: /var/cache/apt/archives/samba-common_3.0.28a-1ubuntu4.4_i386.deb: corrupted filesystem tarfile - corrupted package archive'

I can't add any more packages through the package manager until I fix the broken dependency caused by this.

I installed Hardy Heron 8.04, alt version, and have attached my sources.list (I don't know if this will help or not).

ProblemType: Package
Architecture: i386
Date: Tue Aug 19 19:18:12 2008
DistroRelease: Ubuntu 8.04
ErrorMessage: corrupted filesystem tarfile - corrupted package archive
Package: samba-common 3.0.28a-1ubuntu4
PackageArchitecture: i386
SourcePackage: samba
Title: package samba-common 3.0.28a-1ubuntu4 failed to install/upgrade: corrupted filesystem tarfile - corrupted package archive
Uname: Linux 2.6.24-19-generic i686