Your question is answered in the SCJD FAQ (second question): you don't have to upgrade your exam; any programmer exam is sufficient to allow you to take the developer exam.
SCJP 1.4, SCJD
Joined: Feb 19, 2004
Hi all and Frans, Thanks Frans for the reply, I am happy that I donot have to spend for SCJP again. Are there any resources other than the usual ones, that you used for preparation? Can you help me with the URLs? Thanks and Regards Srinivas