> In the past week I have try to make JayBird 1.5 (Beta 3) connect in ´
> Firebird 1.5 embeeded version.
> 1) JayBird supports the embeeded version ?

Yes, however you need to load a dll from driver's download area
(jaybird.dll or libjaybird.so, see
http://sourceforge.net/project/showfiles.php?group_id=9028&package_id=44761=
)

> 2) It is possible connect, how I do this from Tomcat, like a full
> server or have some trick?

You use following JDBC URL:

jdbc:firebirdsql:embedded:/path/to/database.gdb

No tricks are needed.

Best regards,
Roman Rokytskyy