beta2, I can't set UTF-8 for czech locales on win

Hello

I would to initdb with UTF8 encoding. But after installation, I had
cp1250 encoding

lc_collate | Czech_Czech Republic.1250
he collation order locale.
lc_ctype | Czech_Czech Republic.1250
he character classification and case conversion locale.
lc_messages | Czech_Czech Republic
e language in which messages are displayed.
lc_monetary | Czech_Czech Republic

Installation protocol is on http://www.pgsql.cz/data/postgresql-8.3-beta2.zip

When I try manually rebuild cluster I had second problem:

C:\PostgreSQL\bin>initdb -D ../data
The program "postgres" is needed by initdb but was not found in the
same directory as "C:\PostgreSQL\bin/initdb".
Check your installation.

but:
29.10.2007 10:24 69 632 clusterdb.exe
29.10.2007 10:24 69 632 createdb.exe
29.10.2007 10:24 61 440 createlang.exe
29.10.2007 10:24 73 728 createuser.exe
29.10.2007 10:24 56 320 dropdb.exe
29.10.2007 10:24 62 976 droplang.exe
29.10.2007 10:24 56 320 dropuser.exe
29.10.2007 10:08 106 496 initdb.exe
29.10.2007 10:25 30 208 oid2name.exe
19.10.2007 13:24 9 314 304 pgAdmin3.exe
19.10.2007 13:18 700 416 pgAgent.exe
29.10.2007 10:25 61 440 pgbench.exe
29.10.2007 10:08 38 912 pg_config.exe
29.10.2007 10:08 39 424 pg_controldata.exe
29.10.2007 10:23 65 536 pg_ctl.exe
29.10.2007 10:23 262 144 pg_dump.exe
29.10.2007 10:24 143 360 pg_dumpall.exe
29.10.2007 10:09 53 248 pg_resetxlog.exe
29.10.2007 10:24 131 072 pg_restore.exe
29.10.2007 10:10 34 304 pg_standby.exe
29.10.2007 10:23 4 009 984 postgres.exe
29.10.2007 10:23 299 008 psql.exe
29.10.2007 10:24 69 632 reindexdb.exe
15.10.2007 08:28 1 400 832 StackBuilder.exe
29.10.2007 10:24 43 008 vacuumdb.exe
29.10.2007 10:26 28 672 vacuumlo.exe
26 File(s) 17 282 048 bytes
0 Dir(s) 507 240 448 bytes free

What I did wrong?

Regards
Pave Stehule