Not so easy...

You must use CVS to download the sources and then run a build script
to compile them. If you don't know what CVS is go to
http://www.cvshome.org and have a look.

Once you have CVS working:
1) Go to http://sourceforge.net/cvs/?group_id=9028: there's an
explanation on how to connect to the CVS server (using Anonymous login);
2) check out the module named "client-java";
3) on your machine, go to ...\client-java\build and run build.bat;
4) in ..\client-java\build\jar you'll find the client-java library
named "firebirdsql.jar"; add it to your classpath, along with the
libraries that you find in ..\client-java\src\lib;

I hope this helps you

Ciao
Luca

--- In IB-Java@y..., "Kurt Bilde" <kub@s...> wrote:
> Hi!
>
> Looked at http://sourceforge.net/projects/firebird/ for the type 4 JDBC
> client, but couldn't find it... Am I blind or...
>
> -Kurt