> I installed firebird CS 2.1.3.18185 and it seems to work.
> Can't load INTL module '/opt/firebird/intl/fbintl.so'

I had the same problem on an old Trustix server with 2.4 kernel.
I only got the problem when i specified a character set.
( iso8859_1 in my case )

I went back to FirebirdCS-2.0.5.13206-0.i686.rpm
That one worked fine.

Grtz,
Rik