Well, since the thumbnails are simply normal HTML on your page, you'd simply tailor them to suit the desired layout. In this case, maybe something like:
Code:
<div style="width: 100px; float: left">
<a href="bulb.jpg" rel="enlargeimage::mouseover" rev="loadarea"><img src="thumb1.gif" /></a>
<a href="bulb.gif" rel="enlargeimage::mouseover" rev="loadarea"><img src="thumb2.gif" /></a>
"
</div>
<div style="width: 100px; float: left">
<a href="bulb.gif" rel="enlargeimage::mouseover" rev="loadarea"><img src="thumbmore1.gif" /></a>
<a href="bulb.gif" rel="enlargeimage::mouseover" rev="loadarea"><img src="thumbmore2.gif" /></a>
"
</div>
<div id="loadarea" style="width: 600px; height: 400px; float: left">
</div>
<br style="clear: left" />
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