How can I stop Spam Questions?

I am receiving spam questions that are published directly to my blog AtHomeSense.com with out going into the Pending Queue first.
I am already using the Stop Spammer Registrations Plugin but it's not working.
Any ideas?
I would be happy to take the spam if they would just go to the Pending queue instead of publishing directly to the live site.
Lee Dworshak
AtHomeSense.com