I HATE SPAM! Get out of my comments!

So lately I've been hit with spam in my comments.  Like every other day.  So I turned back on the "type in this word when you comment".  Well it didn't help.  Can someone please tell me if/when you comment on my blog do you get the prompt to input the special picture word?  Secondly, are any of you having to deal with this?

Unfortunately that means I will be forced to turn on my comment moderator for a while.  So if you don't see your comments instantly know it's because I'm weeding out the annoying worthless SPAM!!!!

Sorry for the inconvenience.

UPDATE:  Amalia saved me.  I will try moderating posts older than a couple of days since my spam is usually not on current posts.  Hopefully this will solve it!  Thanks Amaila!