you can do this, but i have small changes as follow
1) you remove the background image displaying on the header, you find codes in the files: templates/ja_rockrochea/index.php
[PHP]
<div id=”ja-subhead” style=”background: url(<?php echo $tmpTools->templateurl().”/images/headers/$ja_headerimg-bg1.jpg”;?>) no-repeat bottom left;”>
<div class=”innerpad”>
<jdoc:include type=”modules” name=”top” style=”xhtml” />
</div>
</div>
[/PHP]
remove style attribute of div.
2) you can put flash codes inside above block, or you put a custom module on the top position,
3) fix css for the this module if it has any problems
