Kannst du mal den Code posten? Auch das CSS.
Also hab jetzt 3 mal das selbe bild eingefügt einfach mal um den code generieren zu können:
<!-- Erstellt mit MachHTML - (C) machhtml.de -->
<style type="text/css">
<!--
a.ThumbLink { position:absolute; top:0px; left:0px; text-decoration:none; }
a:link.ThumbLink { text-decoration:none; }
a:active.ThumbLink { text-decoration:none; }
a:visited.ThumbLink { text-decoration:none; }
a:hover.ThumbLink { text-decoration:none; cursor

ointer; }
span.spanthumb { width:70px; height:70px; border:1px outset #000000; text-align:center; }
span.spanthumb:hover { border:1px solid red; }
a#ThumbLink1:hover div.divbild1 { display:block; }
#divthumb1 { position:absolute; top:0px; left:647px; }
div.divbild1 { display:block; width:640px; height:480px; text-align:center; }
a#ThumbLink2:hover div.divbild2 { display:block; }
#divthumb2 { position:absolute; top:0px; left:721px; }
div.divbild2 { display:none; width:640px; height:480px; background-color:#FFFFFF; text-align:center; }
a#ThumbLink3:hover div.divbild3 { display:block; }
#divthumb3 { position:absolute; top:73px; left:647px; }
div.divbild3 { display:none; width:640px; height:480px; background-color:#FFFFFF; text-align:center; }
-->
</style>
<div style="clear:both;position:relative;display:block;width:795px;height:480px;background-color:#FFFFFF;margin:5px;margin-left:auto;margin-right:auto;margin-top:10px;">
<!-- Bild Nr. 1 -->
<a href="http://klickkomplizen.de/blog/wp-content/uploads/google_logo.jpg" target="_blank" id="ThumbLink1" class="ThumbLink">
<span id="divthumb1" class="spanthumb">
<img src="http://klickkomplizen.de/blog/wp-content/uploads/google_logo.jpg" width="70" height="29" alt="" border="0">
</span>
<div id="divbild1" class="divbild1">
<img src="http://klickkomplizen.de/blog/wp-content/uploads/google_logo.jpg" width="640" height="267" alt="" border="0">
</div>
</a>
<!-- Bild Nr. 2 -->
<a href="http://klickkomplizen.de/blog/wp-content/uploads/google_logo.jpg" target="_blank" id="ThumbLink2" class="ThumbLink">
<span id="divthumb2" class="spanthumb">
<img src="http://klickkomplizen.de/blog/wp-content/uploads/google_logo.jpg" width="70" height="29" alt="" border="0">
</span>
<div id="divbild2" class="divbild2">
<img src="http://klickkomplizen.de/blog/wp-content/uploads/google_logo.jpg" width="640" height="267" alt="" border="0">
</div>
</a>
<!-- Bild Nr. 3 -->
<a href="http://klickkomplizen.de/blog/wp-content/uploads/google_logo.jpg" target="_blank" id="ThumbLink3" class="ThumbLink">
<span id="divthumb3" class="spanthumb">
<img src="http://klickkomplizen.de/blog/wp-content/uploads/google_logo.jpg" width="70" height="29" alt="" border="0">
</span>
<div id="divbild3" class="divbild3">
<img src="http://klickkomplizen.de/blog/wp-content/uploads/google_logo.jpg" width="640" height="267" alt="" border="0">
</div>
</a>
</div>