IT WORKS !!!

Thanks to Roman !

Actually there were two problems :

- the first one was my fault : I had firebirdsql 1.0 in my classpath,
so I have to delete them.

- The second one is not explained in the released notes : you need to
have the file jaybird.dll too ! This file is not provided in the
firebirdsql zip file.
You can find it here :
http://prdownloads.sourceforge.net/firebird/jaybird.dll?download

I think this should be fixed ASAP, if not it's completely impossible
to use the embedded firebird with Jaybird.

Thanks again Roman and Marco for you help.

Patrick