I successfully compiled the pdj lib
placed the whole dir in the /usr/lib/pd/extra dir
set a path to it in pd-extended
tried to open a help file for the 'help class' and got
a red outline around the [pdj help class] external
and this error in the console:

pdj help_class
... couldn't create
pdj: unable to use the JVM specified at pdj.JAVA_HOME
pdj: using JVM from the LD_LIBRARY_PATH
error: pdj: libjava.so: cannot open shared object file: No such file or directory
pdj help_class @attr1 10
... couldn't create
tried text-help.pd and failed
tried /usr/lib/pd/doc/5.reference/text-help.pd and succeeded

I'm reading through the 'pdj.properties' file but not sure of what to modify

any help is appreciated!
??

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my Linux audio config:
Dell Studio 15 Core2 Duo 2.0GHz 3G-RAM
Ubuntu 9.04
kernel 2.6.28.18-generic

@James: what did you do to solve your errors?

He apparently bought a spamtastic air conditioner.

ok I thought his reply seemed a little off the mark

likewise ... has ANYBODY a working version of pdj or am i wasting my time? if yes, whats your setup? what is installed where?