WPC Editor component

Hi,

I am trying to create a new custom editor component (Radiobutton, weird that SAP doesn't provide one out of the box) in WPC for our Portal 7.4 system. I am using the following document to guide me:

http://scn.sap.com/docs/DOC-7157

But when I try to use my custom editor component in my WPC form, I am getting the below error:

Errror loading component class, au.com.XXXX.wpc.editor.XXXXRadioButton, class not found com.sap.nw.pcc.km.service.editor.EditorException: Errror loading component class, au.com.XXXX.wpc.editor.XXXXRadioButton, class not found

at com.sap.nw.pcc.km.service.editor.component.EditorComponentFactory.getComponent(EditorComponentFactory.java:119)

at...

Can not create page snippetcom.sap.nw.pcc.km.service.editor.EditorException: Errror loading component class, au.com.XXXX.wpc.editor.XXXXRadioButton, class not found

Could you please tell me what I am missing here, as no matter what I try this error is not getting resolved.

Thanks,

Ajay