Bug#544854: Squashfs-modules packages are missing with Debian Squeeze and Debian Sid

[Hammer Attila <hammera@pickup.hu>]

Package: squashfs-modules-2.6-686
Version: 2.6.30-1-686
Dear Maintainer or Developer!
When I trying installing for example the squashfs-modules-2.6-686 or 
squashfs-modules-2.6-486 packages in Debian Squeeze or Sid, this 
packages are not present and I see following message:
Reading package lists...
Building dependency tree...
Reading state information...
Package squashfs-modules-2.6-686 is not available, but is referred to by 
another package.
This may mean that the package is missing, has been obsoleted, or
is only available from another source

What happen this packages? When I try install this packages with Debian 
Lenny, the installation is succesfuly completed.
This is important me, because for example the live-helper package 
impossible to do the Debian Squeeze or Sid live cd if this packages are 
missing.

Thanks,

Attila Hammer