It is my duty to announce that JCal Pro® v1.6.x has been officially deprecated. This Joomla! 1.0/1.5 hybrid was simply too unweildly and overly complicated, especially as we poured more-and-more resources into JCal Pro® 1.5.x MVC. However, we are committed to re-engineering many of the features in JCal Pro® 1.6 into JCal Pro® 1.5.x MVC for Joomla! 1.5.x. Our first priority will be to improve recurring event options and add recurring event exceptions.