> k, I understand that but i just don't know how i could do that :(
> The configuration I use is Orionserver + firebirdsql(configured as
> a data-source for orion) + firebird 1.0 superserver;

You need to check the Orion server configuration. You must be able to
set additional parameters to data source. But if you cannot, you can
try URL-encoded parameters:

jdbc:firebirdsql:localhost/3050:/var/.../TOPSPORT.GDB?
lc_ctype=UNICODE_FSS&user=sysdba&password=masterkey

I never tried such syntax, but there were some posts that this
works. :)

Best regards,
Roman Rokytskyy