Cannot get ChildBrowser working on Cordova 2.0.0: Cannot read property 'childBrowser' of undefined

I'm done extensive search online and followed tutorials but I still got Cannot read property 'childBrowser' of undefined.

Here are my steps:

1. download childbrowser.js and included after cordova-2.0.0.js in index.html
2. download ChildBroswer.java and put it in com.phonegap.plugins.childBrowser. I checked the build path and src/ is included.

3. modify the config.xml file by adding the following line (previous examples said plugins.xml which I assume is the old version of config.xml

   plugin name="ChildBrowser" value="com.phonegap.plugins.childBrowser.ChildBrowser"/>

4. add the following into androidmanifest.xml:

   activity android:name="com.phonegap.DroidGap" android:label="@string/app_name"> intent-filter> /intent-filter> /activity>

5. My index.html looks like the example here: http://simonmacdonald.blogspot.com/2011/09/phonegap-android-childbrowser-revamp.html .

I've run out of ideas why this is happening to me...

Problem solved. My childbrowser.js was partially downloaded which causes this error