How to put flash header only in front page

The change you can do it in index.php of the template.

For joomla1.0 the code is

<?php if ($option=="com_frontpage") : ?>
<object type="application/x-...........
</object>
<?php endif; ?>

For joomla1.5 the code is

<?php if (JRequest::getVar('view')=='frontpage') : ?>
<object type="application/x-s..................
</object>
<?php endif; ?>