I would like to ask if usrmgr is open for translation. As Eric Kohl left the following message inside en-US.rc:
 * Attention Translators:
 *   DO NOT TRANSLATE THESE RESOURCES YET!
it should be quite evident, its not ready yet.

Alas, a russian translation exists, commited by Fireball himself.

Regards
Olaf Siejka aka Caemyr aka Haos