I don’t know where or why your module is not working. But I would suggest installing the firebug extension for firefox. Then keep the net tab open and you will at least be able to see what request is causing your trouble.
public function [MODULE_NAME]Action() { //$this->_initProduct(); $this->getResponse()->setBody( $this->getLayout()->createBlock('[LINK_NAME]')->toHtml() ); }
but, now I’m stunned. The save button doesn’t work anymore.