Hi Maureen,
XCommentPro has a few methods to cut down on Spam and clean the site of unwanted posts.
The first is to make sure the capcha feature is switched on.
This will stop automated processes from posting comments
The next is to vet all the comments
before you allow them on the website.
Comments are easy to preview and delete in the administration section.
Have a look around the options, ans you will see other span filters too.

_________________
Ben Fleeson
Empowering individuals to be financially independent.
http://xsiteprosupport.com/