Heres an example of using skin.xml to configure your [LINKS] token on installation...
<Object>
<Token>[LINKS]</Token>
<Settings>
<Setting>
<Name>Separator</Name>
<Value><![CDATA[ <img src=links.jpg> ]]></Value>
</Setting>
<Setting>
<Name>Alignment</Name>
<Value>Horizontal</Value>
</Setting>
<Setting>
<Name>Level</Name>
<Value>Root</Value>
</Setting>
<Setting>
<Name>CssClass</Name>
<Value>SelectedTab</Value>
</Setting>
</Settings>
</Object>
Experiment with...
<Setting>
<Name>Level</Name>
<Value>Root</Value>
</Setting>
<Setting>
<Name>Level</Name>
<Value>Child</Value>
</Setting>
<Setting>
<Name>Level</Name>
<Value>Same</Value>
</Setting>
Im not too sure on what the difference is between Child level and Same...Im yet to experiment that far myself..
With
<Setting>
<Name>Separator</Name>
<Value><![CDATA[ <img src=links.jpg> ]]></Value>
</Setting>
You can use any html (img or text deco) to seperate each link as long as the html is <![CDATA[
In here somewhere]]>
Hope thats of some help.