Im trying to add Facebook custom audience pixel on magento. Directions state to add to head file. Oiginally I added to /isolatorfitness.eu/html/app/design/frontend/base/default/template/page/html BUT it applying to all stores. Does any one know what file I need to add each code to, to apply to all stores with seperate domains. Right now we have our main Europe store that has the tracking pixel but Germany and Uk stores need there own code under there own domain.