shot in the dark, but try:
<?php
$Gadgets = simplexml_load_string(file_get_contents('http://www.flashmajic.com/gadgets.xml'));
//foreach ($Gadgets->Site as (array)$Site)
for($x=0;$x<6;$x++)
{
echo '<tr>';
echo '<td valign="top">';
echo '<h5>'.$Site[$x]->Title.'</h5>';
echo '<h6><img src="'.$Site[$x]->Image.'"/></h6>';
echo '</td>';
echo '<td valign="top">';
echo '<h5>'.$Site[$x]->Title.'</h5>';
echo '<h6>'.$Site[$x]->description.'</h6>';
echo '<h6><a href="'.$Site[$x]->links.'">Add Module To Your Google Page.</h6></a>';
echo '</td>';
echo '</tr>';
}
?>
Initializing the "Sites" node as an array for access via $Site[$x] etc etc.
Not sure if that will work, on the way out the door but saw no replies so trying to help, good luck..