It's still now working! I have supplied both install and uninstall urls for my application; none of the url is getting called / pinged.    

I have specified both install and uninstall plugins for my app. But none of the plugin is being called.  Does anyone know if this is a know issue or do I have to do anything special to get this to work?      

I'm specified URL to my app.xml when creating app in myspace. There  are couple of issues that I'm struggling with --   1. I have specified    <Require feature="opensocial-0.7"/>     in my ModulePrefs. When I validate the xml it gives following message -- The element ...