Ok, thanks Andrew for the details.
That's certain that the EJB version is not
the big matter for the SCEA certif,
as long as it is not prejudicial for
the design part of the certification.
Think about this :
in the Sun old book "Core J2EE patterns" (Deepak Alur),
the 2001 version, their advice is to use EJB entity BMP
better than CMP, which is totally wrong today...