pure-ftpd passwords using Blowfish on Ubuntu

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http://stackoverflow.com – My company is using pureftp and is currently on OpenSUSE. Pure ftp defaults to blowfish encryption for passwords and that is great, but we are now moving over to Ubuntu. Ubuntu doesn't have blowfish installed by default so we would have to get all our users to reset their passwords. We really just want to get blowfish working on ubuntu. We tried installing libpam-unix2 by following the directions here: http://ubuntuforums.org/showthread.php?t=300208 but it still doesn't work. Anyone have any idea how to make this work? (HowTos)