Support for Joomla 1.5 ended in April of 2012
Does that mean your 1.5 site will suddenly stop working? No, your site will continue to work as it always has. However, Joomla’s developers will not be releasing new versions for Joomla 1.5, so you won’t be getting bug fixes or security fixes. For this reason, it’s recommended to migrate from 1.5 as soon as possible,
We are familiar with the migration process and are currently migrating multiple sites CONTACT US fora free proposal to migrate your site.