Now you can add your controls to the form:

<asp:panel id="pnl1" Runat="server">
<TABLE width="100%">
 <TR>
  <TD align=right>input 1:</TD>
  <TD><asp:TextBox id="textbox1" Runat="server"></asp:TextBox></TD>
 </TR>
</TABLE>
</asp:panel>

I just added a text box to each step for the wizard, but you can add as many different controls as you like.  I will add a save button on step 4.

<asp:panel id="pnl4" Runat="server">
 <TABLE>
  <TR>
   <TD align="right">input 4:</TD>
   <TD><asp:TextBox id="TextBox4" runat="server"></asp:TextBox></TD>
  </TR>
  <TR>
   <TD align="right" colSpan="2">
    <asp:Button id="cmdSave" runat="server" Text="Save"></asp:Button>
   </TD>
  </TR>
 </TABLE>
</asp:panel>

That will allow the user to save the values once they have reached step 4. Your form will now appear like this in design view.