Cistron Webmin on Gentoo

[Darcy (YourLink)]

Good day all,

   I am trying to install Cistron Radius module for Webmin - Has any
one ever got this to work?  What additional details do you need from me?

I have tried installing using add modules from webmin configuration but
it fails.  I select From ftp or http URL  and use
http://superb-east.dl.sourceforge.net/sourceforge/cistronwebmin/cistron.wbm
as the file location and I select Grant access to all Webmin users.
here is what I get

Downloading
http://superb-east.dl.sourceforge.net/sourceforge/cistronwebmin/cistron.wbm
(187392 bytes) ..
     Received 1024 bytes (0 %)
     Received 19456 bytes (10 %)
     Received 37888 bytes (20 %)
     Received 56320 bytes (30 %)
     Received 75776 bytes (40 %)
     Received 94208 bytes (50 %)
     Received 112640 bytes (60 %)
     Received 132096 bytes (70 %)
     Received 150528 bytes (80 %)
     Received 168960 bytes (90 %)
     Received 187392 bytes (100 %)
.. Download complete.

Failed to install module from
http://superb-east.dl.sourceforge.net/sourceforge/cistronwebmin/cistron.wbm
: Module cistron does not support this operating system (Gentoo Linux
Any version)

Thanx for any pointers.
Darcy