Error with membership

 i want to add the membership feature to my application, the fist thing i did was run the aspnet_regsql.exe, now i can see all the tables and stored procedures in my own database, Now when i going to create a new rol or a new user using the asp net WAT, it's storing all the information in the ASPNETDB database not in mine.
 This is my membership code section in the webconfig file.
 
    <membership defaultProvider="SqlMembershipProvider">
      <providers>
        <clear/>
        <add name="SqlMembershipProvider"
             type="System.Web.Security.SqlMembershipProvider, System.Web, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a"
          ...