Debug website - feature image not setting for slider

I need 30 - 60 minutes of someone's time to help me debug my WordPress theme. I have the plugin 'Responsive Slider' installed and the function for setting a Featured Image is not working. When I switch to the default Twenty Twelve wordpress theme it works. The solution is to allow me to set a Featured image without uninstalling any other WordPress plugins or switching the theme. Site link: [login to view URL] The person who I select must be able to speak great English. I'm not interested in playing broken English decoder today.