@joanne721. I did a little research and it seems as though by default since Joomla 1.5, plugins don't work inside of modules. There was a discussion about this issue here: http://forum.joomla.org/viewtopic.php?p=1443225
However, there are several free modules you can get from JED that allows you to run a plugin inside a module. I don't know what works. But, a quick search on google lead me to this one: http://extensions.joomla.org/extensions/core-enhancements/embed-a-include/6713 and there are others mentioned in the discussion forum link above. Let me know if it works.