How to reproduce :

• override exchange-agenda-event template like this :

  <xsl:template name="exchange-agenda-event">
  	    &lt;li>
  		    &lt;a class="user-infos-event exchange-user-infos-event">
  				<xsl:call-template name="exchange-event-date"/>
  				<xsl:call-template name="exchange-event-subject"/>
  				<xsl:call-template name="exchange-event-location"/>
  			&lt;/a>
  		&lt;/li>
  	</xsl:template>

  The values of date, subject and location are not finded because tags values are not direct childs.

You should replace $event.children with $event.find in plugin-exchange/stylesheets/exchange-js.xsl