here are the cs4 Essentials.xml contents:
<?xml version="1.0" encoding="UTF-8" standalone="no" ?>
<panelset>
<application/>
<document maximize="true" rect="0 0 500 500"/>
<panelframe dock="right" iconmodewidth="118">
<panelcontainer expanded="true" height="692" visible="true">
<panel height="692" id="droverproperties" unconstrainedheight="114" unconstrainedwidth="260" width="260"/>
<panel column0id="1" column0width="230.00" column1id="2" column1width="230.00" column2id="3" column2width="70.00" column3id="4" column3width="135.00" column4id="5" column4width="70.00" filename="" height="692" id="droverlibrary" previewwithgrid="0" previewwithmoviebackground="1" sortasending="1" sortcolumn="1" splitter="0.06" unconstrainedheight="114" unconstrainedwidth="260" width="260"/>
</panelcontainer>
</panelframe>
<panelframe dock="right" height="724" width="34" x="2" y="25">
<panelcontainer expanded="true" height="724" visible="true">
<panel height="1422" id="tools" unconstrainedheight="175" unconstrainedwidth="189" width="24"/>
</panelcontainer>
</panelframe>
<panelframe dock="bottom" height="204" x="1" y="1">
<panelcontainer expanded="true" height="180" visible="true">
<panel height="180" id="drovertimeline" isInLayerMode="false" unconstrainedheight="180" unconstrainedwidth="600"/>
<panel height="180" id="keyframeeditor" unconstrainedheight="180" unconstrainedwidth="600" width="1100"/>
<panel height="180" id="output" unconstrainedheight="180" unconstrainedwidth="600" visibleTab="false"/>
<panel height="180" id="compiler errors" unconstrainedheight="180" unconstrainedwidth="600" visibleTab="false"/>
</panelcontainer>
</panelframe>
</panelset>
