• Email checking is pretty loose at the moment; debating whether or not to strengthen it (comments?)
• Requires PHP 5 to work!
• Make sure that the Joomla Content - Load Module plugin is enabled if putting form in an article
• Make sure simple email form module is assigned to the same menu as the the article which contains the module

 PLEASE don't email us until you've read the documentation on how to make a Joomla module appear inside an article!!!

Here are some references to help you:

http://docs.joomla.org/How_do_you_put_a_module_inside_an_article?

http://www.joomlabamboo.com/blog/tutorials/using-the-loadposition-plugin-in-joomla