Setting up JAVA_HOME in hadoop-env.sh

Hi: 

I am in the process of installing hadoop on non-clustered single node windows xp. SSH installed and running. 

Java version: java version "1.5.0_15" it is installed in c:\Program Files\Java\jdk1.5.0_15 

hadoop-env.sh 

export JAVA_HOME=/cygdrive/c/Program\ Files/Java/jdk1.5.0_15 

When I am executing the command 

bin/hadoop namenode -format 

I am getting the following error, how to escape "Program Files"? 

Error: 
============== 
$ bin/hadoop namenode -format 
cygpath: can't convert empty path 
/usr/local/hadoop-0.22.0/bin/hadoop-config.sh: line 194: /cygdrive/c/Program: No such file or directory 
cygpath: can't convert empty path 
DEPRECATED: Use of this script to execute hdfs command is deprecated. 
Instead use the hdfs command for it. 

cygpath: can't convert empty path 
C:\cygwin\usr\local\hadoop-0.22.0\/bin/hadoop-config.sh: line 194: /cygdrive/c/Program: No such file or directory 
cygpath: can't convert empty path 
java.lang.UnsupportedClassVersionError: Bad version number in .class file 
        at java.lang.ClassLoader.defineClass1(Native Method) 
        at java.lang.ClassLoader.defineClass(ClassLoader.java:620) 
        at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:124) 
        at java.net.URLClassLoader.defineClass(URLClassLoader.java:260) 
        at java.net.URLClassLoader.access$100(URLClassLoader.java:56) 
        at java.net.URLClassLoader$1.run(URLClassLoader.java:195) 
        at java.security.AccessController.doPrivileged(Native Method) 
        at java.net.URLClassLoader.findClass(URLClassLoader.java:188) 
        at java.lang.ClassLoader.loadClass(ClassLoader.java:306) 
        at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:268) 
        at java.lang.ClassLoader.loadClass(ClassLoader.java:251) 
        at java.lang.ClassLoader.loadClassInternal(ClassLoader.java:319) 
Exception in thread "main" 


NOTE: My previous message was not complete at all, I apologize. 

Regards, 
Arup