http://www.directsharepoint.com/2011/11/redirecting-to-custom-user-profile.html

1. 建一个empty element

<?xml version="1.0" encoding="utf-8"?>
<Elements xmlns="http://schemas.microsoft.com/sharepoint/">
  <!-- set redirect to the new profile page on pages such as userdisp.aspx -->
  <Control Id="ProfileRedirection"
           Sequence="50"
           ControlSrc="~/_controltemplates/CustomProfileRedirect.ascx"/>
</Elements>

2. 添加到这个element到一个feature里面

3. 在用户控件中处理这个redirect