It's cats vs. dogs... the ultimate showdown! I've entered Luna in the challenge and need your help to win!  The furry friend with the most votes will be the lucky winner of the MSN Greetings Pet Pics Challenge.  Please visit the website and vote for Luna.  http://www.msn.americangreetings.com/pet-pics-challenge.  Simply follow the link, do a search for Luna, and cast your vote.  You can even enter your adorable friend in the contest yourself!