Zwei Bilddateien in einen Ordner und dann bitte den Quelltext in eine Datei in selben Verzeichnis.

Folgendes Habe ich mir dann mal angepasst:
<head>
<meta http-equiv="Content-Type" content="application/xhtml+xml; charset=UTF-8" />
<title>Projekt Kunstrasenplatz</title>
<meta name="Author" content="Pulli" />
<style type="text/css">
/* set up the font to be used for the page */
body {font-family: tahoma; arial, sans-serif;}
/* set the size of the definition list <dl> and add the background image */
#imap {display:block; width:1192px; height:597px; background:url(Plan.jpg) no-repeat; position:relative;}
/* set up the definition list <dt><a> to hold the background image for the hover state */
#imap a#title {display:block; width:1192px; height:0; padding-top:597px; overflow:hidden; position:absolute; left:0; top:0; background:transparent url(hover.jpg) no-repeat 200px 200px; cursor:default;}
/* the <dt><a> hover style to move the background image to position 0 0*/
#imap a#title:hover {background-position: 0 0; z-index:10;}
/* place the <dd>s in the correct absolute position */
#imap dd {position:absolute; padding:0; margin:0;}
#imap #pic1 {left:0px; top:00px; z-index:20;}
#imap #pic2 {left:578px; top:281px; z-index:20;}
#imap #pic3 {left:596px; top:281px; z-index:20;}
#imap #pic4 {left:578px; top:300px; z-index:20;}
#imap #pic5 {left:596px; top:300px; z-index:20;}
#imap #pic6 {left:35px; top:00px; z-index:20;}
#imap #pic7 {left:53px; top:00px; z-index:20;}
/* style the <dd><a> links physical size and the background image for the hover */
#imap a#K,
#imap a#Bernd,
#imap a#Preis,
#imap a#Maus
{display:block; width:18px; height:18px; background:transparent url(hover.jpg) -100px -100px no-repeat; text-decoration:none; z-index:20;}
/* style the span text so that it is not initially displayed */
#imap a span, #imap a:visited span {display:none;}
/* move the link background image to position 0 0 when hovered */
#imap a#K:hover,
#imap a#Bernd:hover,
#imap a#Preis:hover,
#imap a#Maus:hover
{background-position:0 0;}
/* define the common styling for the span text */
#imap a:hover span {position:absolute; width:200px; height:200px; display:block; font-family:arial; font-size:12px; background:#fff; color:#000; border:1px solid #000; padding:5px;}
/* move the span text to a common position at the bottom of the image map */
#imap a#K:hover span {left:1px; top:1px;}
#imap a#Bernd:hover span {left:1px; top:1px;}
#imap a#Preis:hover span {left:1px; top:1px;}
#imap a#Maus:hover span {left:1px; top:1px;}
/* add the style for the link span text - first line */
#imap a span:first-line {font-weight:bold; font-style:italic;}
#ads {margin-top:150px;}
</style>
</head>
<body>
<h2>Sponsoren des Kunstrasenplatz</h2>
<h3>Auch Sie koennen mitmachen</h3>
<dl id="imap">
<dt><a id="title" href="#nogo" title="Sponsoren Kunstrasenplatz">The Beatles</a></dt>
<dd id="pic1"><a id="K" title="Kuechen" href="#nogo"><span>Kuechen Doerr - Ihr Küchenspezialist<br /><br />Berti und seine Kuechen.</span></a></dd>
<dd id="pic2"><a id="Bernd" title="Bernd Maerz 1" href="#nogo"><span>Bernd Maerz - Privatperson<br /><br />1. Vorsitzende.</span></a></dd>
<dd id="pic3"><a id="Bernd" title="Bernd März 2" href="#nogo"><span>Bernd Maerz - Privatperson<br /><br />1. Vorsitzende.</span></a></dd>
<dd id="pic4"><a id="Bernd" title="Bernd März 3" href="#nogo"><span>Bernd Maerz - Privatperson<br /><br />1. Vorsitzende.</span></a></dd>
<dd id="pic5"><a id="Bernd" title="Bernd März 4" href="#nogo"><span>Bernd Maerz - Privatperson<br /><br />1. Vorsitzende.</span></a></dd>
<dd id="pic6"><a id="Preis" title="Fenster Preis" href="#nogo"><span>Fenster Preis<br /><br />Fenster für Ihr Heim.</span></a></dd>
<dd id="pic7"><a id="Maus" title="Maeusekueche" href="#nogo"><span>Maeusekueche<br /><br />Ihr Restaurant.</span></a></dd>
</dl>
</body>
</html>