[Pljava-dev] Install Error

I'm trying to install pl/java on my laptop for Postgres. I originally tried it with 8.4, but reverted to 8.4 hoping it would fix the problem, but I am getting the same error. The error is:
ERROR: could not load library "D:/Program Files/PostgreSQL/8.3/lib/pljava.dll": The specified module could not be found

I have the following in poosgressql.conf file
custom_variable_classes = 'pljava'# list of custom variable class names
pljava.classpath='D:\\Program Files\\PostgreSQL\\8.3\\share\\pljava\\pljava.jar'
dynamic_library_path = 'D:\\Program Files\\PostgreSQL\\8.3\\lib\\postgresql'

My Path variable is:
%SSJHOME%\lib;%JAVA_HOME%\bin ;D:\Program Files\Java\jre6\bin;D:\Program Files\Java\jre6\bin\client;D:/Program Files/PostgreSQL/8.3/lib;

And my Classpath variable is:
.;%SSJHOME%\lib\ssj.jar;%SSJHOME%\lib\colt.jar;D:\Program Files\PostgreSQL\pgJDBC\postgresql-8.4-701.jdbc3.jar;D:\Program Files\PostgreSQL\8.3\share\pljava\deploy.jar

I'm using Windows 7 and have the java JDK 1.6 and jre 6 installed. Any ideas of how to resolve this?

Thank you,
Susan
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