Paula Abdul as guest judge on 'DWTS' next week

If you missed - and hard to believe that you did if you're a "Dancing with the Stars" fan (but who knows...maybe you were stuck in traffic on the Southern State....): Paula Abdul will be a guest judge on "DWTS" next week. Was announced on the show tonight. Question: How will her scores be tabulated - or will they be simply added to the three judges' total? Pabdul is well equipped to handle this gig - she is/was a choreographer and pretty darned good dancer of yore.  I also hear she was once a judge on some talent contest show too.