problem keyboard koi8-r

I Install PostgreSQL 6.5.1 on FreeBSD 3.1
(configured --enable-locale --with-mb=KOI8).
I did initdb -e KOI8.
I started postmaster from script:
#!/bin/sh
LC_COLLATE=koi8-r
LC_CTYPE=koi8-r
export LC_COLLATE LC_CTYPE
postmaster -i -S

But, when I run psql. I can not switch keyboard in russian and insert char
in koi8-r (russian word) in table.
Where is mistake?
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vovk(at)sled(dot)rpa(dot)ryazan(dot)su
Grigoriy Vovk