Spark and eclipse 3.3.2 svn build

Hello newbe ? I keep grtting this every time run test build and many of the others in the ant

Buildfile: E:\workspace\spark_2_5_8\build\build.xml

init:

resources:

base:

Building jar: E:\workspace\spark_2_5_8\target\build\lib\base.jar

build:

Compiling 299 source files to E:\workspace\spark_2_5_8\target\classes

BUILD FAILED

E:\workspace\spark_2_5_8\build\build.xml:207: Unable to find a javac compiler;

com.sun.tools.javac.Main is not on the classpath.

Perhaps JAVA_HOME does not point to the JDK.

It is currently set to “C:\Program Files\Java\jre1.6.0_06”

Total time: 6 seconds

how do I fix this without screwing up my server what am I doing wrong I have jdk1.6.0_06 and jre1.6.0_06 and Java3D, I am using winxpsp2 Please for any help as this is my first svn build ever and I would much like to learn to do this type of programing. this is my environment veriables

http://kingshomeworld.com/downloads/iv.gif

Bruce