200 ok

Hi,
I put my site through the page rank.com/redirect-check and I get this,

Potential problems on this site
2 pages returned a 200 response. This indicates potential for duplicate content problems. Ideally, only http://www.foreverlookingood.com OR http://foreverlookingood.com should return a 200 response.

I have no idea how to fix, there is nothing in webmaster tools.

thankyou in advance.