Lists Join CAML Queries

Hi All,

        I have task on Join lists using  CAML Query.In my SharePoint Site I have two lists

     List 1 :EmployeeDetails

               Columns:ID, Employeenumber, EmployeeName, EmailAddress, MobileNumber, Technology

     List 2:Project Details

              Columns:Project Name,EmpDetails(LookUp from EmployeeDetails),EmpDetails:EmployeeName,EmpDetails:Tecnology

                                                EmpDetails(EmployeeEmailAddress).

   Can any one help me how can I get the data.I followed the below link ,But showing error as try again later http://blogs.msdn.com/b/kaevans/archive/2012/01/20/sharepoint-2010-caml-list-joins.aspx

Samar