<asp:CreateUserWizard ID="CreateUserWizard1" runat="server"  
        oncreateduser="CreateUserWizard1_CreatedUser1">
            <WizardSteps>
                <asp:TemplatedWizardStep runat="server" ID="cuwAdditional" StepType="Start">
                    <ContentTemplate>
                        <asp:ListBox ID="AvailableRoles"  runat="server"></asp:ListBox>
                    </ContentTemplate>
                </asp:TemplatedWizardStep>
               <asp:CreateUserWizardStep runat="server" Title="Nuovo Utente"></asp:CreateUserWizardStep>
               <asp:CompleteWizardStep runat="server"></asp:CompleteWizardStep>
            </WizardSteps>
    </asp:CreateUserWizard>