Hallo Chris!
Du hast vergessen im 'f3' das <div> zu schließen, ansonsten geht es wie folgt:
<BODY onload="init()">
<div id="f1" style="position:absolute; top:0; left:-100; width:100; height:741; background-color:#646464;"></div>
<div id="f2" style="position:absolute; top:0; left:1100; width:924; height:645; background-color:#2E2E2E;"></div>
<div id="f3" style="position:absolute; top:1100; left:300; width:924; height:100; background-color:#FF9900;"></div>
<div id="f4" style="position:absolute; top:0; left:0;">
<img src="hallo1.gif" width=140 height=30 border=0 alt=""><br><br>
<img src="hallo2.gif" width=140 height=30 border=0 alt=""><br><br>
<img src="hallo3.gif" width=140 height=30 border=0 alt=""><br><br>
<img src="hallo4.gif" width=140 height=30 border=0 alt="">
</div>
</BODY>
Grüße
Thomas