I use this link to convert my ico files:http://www.html-kit.com/favicon
Cheers.
try this:
table.main {width: 800px; background:#ffffff; text-align: left;}
body {color: black; margin: 0; padding: 0; text-align:center; background: url(images/mainbak4.jpg);}
form {margin-bottom:0px; margin-top:0px;}
table.main {width: 800px; background:#ffffff; align: left;}
table {width: 100%; margin: 0px; padding: 0px; align: left;}
table td {padding: 0; vertical-align: top; border-width: 0; font-family: Verdana, Arial, Helvetica, sans-serif;}