help for csp

Hi for all
I need help install debian 5 and csp.Maybe automatic or manual install.

Thxxxx for all help

End this problem

apt-get install sun-java6-jdk
Reading package lists... Done
Building dependency tree
Reading state information... Done
Package sun-java6-jdk is not available, but is referred to by another package.
This may mean that the package is missing, has been obsoleted, or
is only available from another source

E: Package 'sun-java6-jdk' has no installation candidate
root@ubuntu:~#