Just to let you know, that the archive paths for kde-3.1-beta2 Debian packages are broken and the archive can not be used with apt in Debian. Or at least I can not figure how to use it... :(
For examle currently the path (in one mirror) to the archive is http://www.ibiblio.org/pub/packages/desktops/kde/unstable/kde-3.1-beta2/Debian/woody/i386/
But according to the paths found in http://www.ibiblio.org/pub/packages/desktops/kde/unstable/kde-3.1-beta2/Debian/woody/i386/Packages.gz the packages are expected to be in http://www.ibiblio.org/pub/packages/desktops/kde/unstable/kde-3.1-beta2/Debian/dists/woody/main/binary-i386/
I suggest a symbolic link from Debian/woody/i386 to dists/woody/main/binary-i386/
This will be fast solution, which will propagate in seconds if you mirror with rsync.
Good luck and thanks for the packages!
--JS