postgresql-9.0.2-1-windows_x64 from EnterpriseDB can't install on Win 7 home basic 64 bit

Hi,
I know you people have talked a lot about this, but until now I still
can't install the newest release installed on my new Win7 Home basic 64 bit
notebook, the user I run has administration previliege, and I have tried C
and POSIX locale, neither works. The error message are the same:

Problem running post-install step. Installation may not complete correctly.
The database cluster initialisation failed.

I have tried initdb manually, it failed:

initdb -D "D:\\Amber\\Program\\PostgreSQL\\9.0\\data"
--lc-messages=English -U postgres E UTF8 -A md5

and unfortunately initdb can't show the error messages probably, I
think it is because of encoding, my notebook is in Simplified Chinese
Locale, and I know EnterpriseDB does not support it now, do you have a
road map to support this Locale in the near future?

And the installer works on Windows Server 2003 Enterprise R2 SP2 64bit, it
seems it's a platform related problem.

Xiaob Gu