Include following code at the top of ascx page

<%@ Register TagPrefix="dnn" TagName="LINKS" src="~/Admin/Skins/Links.ascx" %>

SkinObject	Code Snippet	Description	Example
dnn:LINKS	< dnn:Links runat="server" id="dnnLinks">	Displays a flat menu of links related to the current tab level and parent node. This is useful for search engine spiders and robots