Creating a round module is a fairly common need with creators of a Joomla! 1.5 template, and it’s actually quite easy.  The creators of Joomla! put in a pre-set module type just to deal with this need, and made it easy to access.  By simply making changes to two files for the template, you can create your own rounded Joomla module.  The two files ‘template.css‘ and ‘index.php‘ can even be edited from the Administrator console directly if you are scared to access your site via FTP.