The SermonSpeaker component.
SermonSpeaker 3.4.3 is the actual release and needs Joomla 1.5 to work.
PHP 5.x is highly recommended.

SermonSpeaker 3.4.3 supports upgrading from SermonSpeaker 3.2.2 and all newer releases. If you have an older release, please use the upgrade packages from JoomlaCode and upgrade to SermonSpeaker 3.2.2 first.