The SCEA for
Java EE 5 exam is only in the survey stage - there has been, as of yet, no date announced for its availability for taking. This is why you've not seen any mention of it yet on Sun's certification site. (This is an update from the current exam, where Part I deals with J2EE 1.2 technology.)
Therefore, if you're looking for an answer towards SCBCD, neither version out there corresponds to the same technology level as the SCEA. SCBCD 5 deals with Java EE 5 (EJB 3) and SCBCD 1.3 covers J2EE 1.3 (EJB 2.0).
That all being said... the technology version is only important for Part I. You can use any released version of Java EE for Part II of the current exam, including Java EE 5.