Unicode vs. sql_ascii

how can i get the rt initialize-database script to create the rt3
database using sql_ascii instead of unicode?
this is on an rhel3.0 system with Pg8.x

below is the error im catching:
Couldn’t create attachment
$VAR1 = {
‘Subject’ => ‘’,
‘ContentType’ => ‘text/html’,
‘Headers’ => ‘Content-Type: text/html; charset="ISO-8859-1"
Content-Transfer-Encoding: quoted-printable
’,
‘Creator’ => ‘70’,
‘Parent’ => ‘965’,
‘Created’ => ‘2002-07-11 20:10:19+00’,
‘id’ => ‘967’,
‘ContentEncoding’ => ‘none’,
‘TransactionId’ => ‘1886’
};

ERROR: invalid byte sequence for encoding “UNICODE”: 0xdf3c

[Tue Aug 9 20:24:51 2005] [crit]: Died at ./dumpfile-to-rt-3.0 line 720.
(/opt/rt3/lib/RT.pm:255)

this is an issue with lang right?

thanks