Squiddy,
First of all, a warm welcome to the forums :D
This should have actually been in the HTML support section, as this section is for people who want someone to design or make a whole website, but your problem was just in the code.
Your problem originated from bad coding (no offense). Your code was all messed, and scattered everywhere. Now, when coding, IE will take whitespace as spaces in the website, where FF wont. For example, for a table, the correct code would be:
<tr><td>Something Here</td></tr>
However, this is incorrect:
<tr>
<td>
Something Here
</td>
</tr>
However, with your website, even FF messed it up. This is the correct code for your page:
<html>
<head><title>Insert Title Here</title>
</head>
<body bgcolor="#000000">
<center>
<table width="600" cellspacing="0" cellpadding="0" border="0">
<tr><td><img src="Images/h2.png" width="50" height="126"><img src="Images/header.png" alt=""><img src="Images/h2.png" width="50" height="126"></td></tr>
<tr><td width="600" bgcolor="#FFFFFF">
<table width="100%" cellspacing="3" cellpadding="3" border="0">
<tr><td><!-- A table inside the whitespace to allow padding, code after this can be deleted -->
<font size="2">
Lorem ipsum dolor sit amet, consectetuer adipiscing elit. Vivamus nec erat quis ante dapibus tempus. Suspendisse suscipit, nisl non accumsan varius, libero urna feugiat felis, at iaculis ipsum dui id pede. In libero mi, laoreet quis, blandit et, elementum ac, purus. Ut ac dolor et risus mattis rhoncus. Curabitur fringilla dictum dui. Quisque blandit mi. Sed mollis, dolor et scelerisque pharetra, velit diam porta augue, ut ultrices nunc nisi eu magna. Quisque scelerisque enim et ipsum. Morbi ultricies feugiat magna. In eu risus eget sapien tincidunt sodales. Vivamus sollicitudin elit ut nunc.
<p>
Sed sit amet metus. Pellentesque habitant morbi tristique senectus et netus et malesuada fames ac turpis egestas. Nulla ipsum dui, ultricies et, gravida sed, commodo ac, enim. Maecenas elementum. Nullam non diam id felis lacinia feugiat. Nullam varius nibh ac pede gravida venenatis. Vivamus convallis quam a lorem. Mauris luctus elit nec magna. Morbi nonummy iaculis dui. Vestibulum consectetuer orci vitae massa. Pellentesque habitant morbi tristique senectus et netus et malesuada fames ac turpis egestas.
<p>
Sed eu magna. Suspendisse vulputate quam eget risus. Ut molestie, odio malesuada mattis convallis, magna massa bibendum ipsum, id consequat mauris tortor eget ligula. Aliquam fringilla quam at lectus. Morbi vitae libero ut pede facilisis blandit. Quisque nibh libero, scelerisque et, scelerisque in, hendrerit ac, purus. Vestibulum sit amet tellus sit amet justo porta pulvinar. Nulla ut dui. Pellentesque vestibulum, eros vel fringilla condimentum, felis sem venenatis elit, sed fringilla nisi sem sit amet tellus. Morbi et lorem sed eros interdum rutrum. Proin tempor blandit lacus. Nunc rutrum. In hac habitasse platea dictumst. Cras sed mi. Duis diam sem, facilisis nec, mattis vitae, eleifend vel, leo. Proin suscipit est ac velit. Ut non sem vitae enim pharetra iaculis. Nunc congue pharetra neque. Vivamus viverra.
</td></tr>
</table>
<!-- End of padding table, stop deleting after this -->
</td></tr>
<tr><td width="600"><img src="Images/f2.png" width="50" height="33"><img src="Images/footer.png" width="500" height="33"><img src="Images/f2.png" width="50" height="33"></td></tr>
</table>
</center>
</body>
</html>
Just one thing to mention, with the white space (your "middle"), I inserted another table inside. This table is just so we can add padding to the inside of the box, so I could insert the sample text. You can keep it there, or delete it. I left in <!-- Comment Tags --> to show you where you can delete from and to.
Hope this helps,
Beefa