Rereading your post you may just be asking "how do I display the timestamp and url."
Here is how to turn on each of those, Just find these in the xml and set each to a 1 to get them to show. If you are working with the Page Layout template instead, there are check boxes to turn these on under the search results section
<xsl:variable name="show_res_snippet">1</xsl:variable>
<xsl:variable name="show_res_url">1</xsl:variable>
<xsl:variable name="show_res_size">1</xsl:variable>
<xsl:variable name="show_res_date">1</xsl:variable>
<xsl:variable name="show_res_cache">1</xsl:variable>