can't compile Limewire

This is teh error i am getting. Although i have the Java Compiler and ANT and I do belive my paths are correct. IN the Ant File It says something about opening Classes.zip and tools.jar.... But i dont' hvae those files and can't seem to find them. Maybe that has something to do with it? ANy suggestions?
C:\share\limewire\core>compile

C:\share\limewire\core>
C:\share\limewire\core>set CLASSPATH=.;../gui/lib/collections.jar;../gui/lib/xer
ces.jar;../gui/lib/MRJToolkitStubs.jar

C:\share\limewire\core>
C:\share\limewire\core>ant
Buildfile: build.xml

init:

core:
[javac] Compiling 148 source files to C:\share\limewire\core
[javac] Modern compiler not found - looking for classic compiler

BUILD FAILED
file:C:/share/limewire/core/build.xml:43: Cannot use classic compiler, as it is
not available. A common solution is to set the environment variable JAVA_HOME t
o your jdk directory.

Total time: 1 second
C:\share\limewire\core>

uh -- look at the error message, is your JAVA_HOME variable set?

also, is the jdk bin directory in your path ?