Hoping someone can guide me in the right direction  to change the skin on the signin page my users get if they click on 'login' button during the chekout process of CATALook ?

During checkout if a user clicks on 'login' when asked to create a profile they go to the following page to login: http://www.mydomain.com/MyAccount/Cart/tabid/123/returnpage/1/ctl/Signin/mid/549/Default.aspx

The problem is that this page users the generic DNN Community skin and not my site skin.  How do I change the skin for this page ?

My normal login page uses my site skin.