Hi Sergio
At the present time there are 2 SCJD versions available for Java 1.1 and Java 2. The Java 2 assignment is the one
you should sign up for.
I used java version 1.6.0_12 when coding my assignment, you just have to make sure the Java version you use is no later than 18 months before the
current production version.
There are only a couple of books that cover the SCJD exam in any depth (1 by Andrew Monkhouse/Terry Camerlengo and the other by Alain Trottier).
This forum is also an excellent source of information and is worth trawling through when you are ready to start the SCJD assignment
Link to the apress-site for Monkhouse book:
scjd-book
The other book is Exam Cram 2 Java 2 Developer by Alain Trottier.
Cheers Kevin.