How is your website coded? Is it strict HTML? CSS? Are you using a CMS (Joomla, Drupal, Wordpress)?
It is a Flash applet, right?
Take a look at their code. The following line stood out to me and might help you:
<object classid="clsid:d27cdb6e-ae6d-11cf-96b8-444553540000" codebase="http://fpdownload.macromedia.com/pub/shockwave/cabs/flash/swflash.cab#version=8,0,0,0" width="570" height="324" align="top">
<param name="allowScriptAccess" value="sameDomain" />
<param name="movie" value="content/portfolio/slideshow.swf" /><param name="quality" value="high" /><param name="bgcolor" value="#000000" /><embed src="content/portfolio/slideshow.swf" quality="high" bgcolor="#000000" width="570" height="324" align="top" allowScriptAccess="sameDomain" type="application/x-shockwave-flash" pluginspage="http://www.macromedia.com/go/getflashplayer" />
</object>