yes this problem is already known, it seems that the pgtcl 32-bit
windows version won't work on a 64-bit system. Maybe you can download
the source code and compile it on your own, but I never tried it.
I will upload an .sql file to the T-ACE homepage for creating a parent
database (should be there tomorrow, under 'T-ACE references').
To your second problem:
It seems you cannot connect to your postgres server. Can you login
through pgAdmin and psql?
You can set your local connection settings in the pg_hba.conf to
'trust', then a password won't be necessary.
If you don't get it running send me an email with more specific
information and your .conf files.
Hope this will help you.