Questions on using multi-byte character in a field of a table (BIG5)

Dear all,

I have some difficult time in using postgresql 6.4 with chinese BIG5
characters. I am just looking for storing BIG characters in a text field
and retrieve correctly. I have --enable-mb when I compile. I am on RH5.1
intel platform, running PG 6.4.
I just created a testing table test
create test ( name char(20), age int);
For most of the characters in BIG5, it works and I can insert
chinese name into the table, but for some characters, esp my own name,
it does not work. I have check the problem out . But cannot solve it.
It is because in my name under BIG5 coding it is "5cb3 54ab c7b3"
or
in ASCII code "263 \ 253 T 263 307" where two byte is a character.
That is "5cb3" ('263' '\' ) is the first character and '54ab' ( '253'
'T' ) becomes the second character. The problem is that somewhere
between storing the value into database and client frontend (Perl,
MSAccess) , the '\' is interpreted and thus the stored value becomes
"263 253 T 263 307" which is distorted.
I don't know where exactly is the problem as when I use Mysql, it is
working fine.
Could anyone give me some hints or help..
Your help is really very appreciated!!!!!!!!!!!!!!!!

Best Rgds,
Jacky