The old exam is no longer being given, no. They announced an end-of-life kind of thing for the first version of the SCEA at the end of February of this year, to transition folks to the new SCEA for Java EE 5.
And yes, you have to take the exams across a single version - if you took the SCEA Part I for the old exam, you either need to do Part II/III for the old one (there's limited vouchers available, I believe, but that too may have expired) or start over on the new track.
Theodore Jonathan Casser
SCJP/SCSNI/SCBCD/SCWCD/SCDJWS/SCMAD/SCEA/MCTS/MCPD... and so many more letters than you can shake a stick at!