On the page(s) you want to display the links, click on the page settings link and then select the "Show Child Pages Site Map" option.

HTH,
Joe D.

You can put the Child Pages Site Map anywhere you like but you have to modify the skin to do so.

For instance, most skins have the following:

<asp:Panel id="divCenter" runat="server" visible="True" cssclass="center-rightandleftmargins" SkinID="pnlPlain">
  <portal:Breadcrumbs id="Breadcrumbs" runat="server"></portal:Breadcrumbs>
  <portal:ChildPageMenu id="ChildPageMenu" runat="server" CssClass="txtnormal"></portal:ChildPageMenu>
  <asp:ContentPlaceHolder ID="mainContent" runat="server"></asp:ContentPlaceHolder>
</asp:Panel>

You would want to change that to:

<asp:Panel runat="server" visible="True" cssclass="center-rightandleftmargins" SkinID="pnlPlain">
  <portal:Breadcrumbs runat="server"></portal:Breadcrumbs>
  <asp:ContentPlaceHolder runat="server"></asp:ContentPlaceHolder>
  <portal:ChildPageMenu runat="server" CssClass="txtnormal"></portal:ChildPageMenu>
</asp:Panel>

HTH,
Joe D.

For skin customizations, you can look here: http://www.mojoportal.com/creatingskins.aspx.

I apologize, I forgot to mention that you would make those changes to the layout.master file in your skin directory \data\sites\[site number\skins\[Your Chosen Skin]

HTH,
Joe D.