FYI- There is a page running in your search promo rotator which opens up 0iframes two levels deep. I used the "report" feature on the page but wanted to bring this to your attention here also.
The offender is the http://www.eggso.com/ page which has upon it a Vastgate.com "banner" which is actually an iframe disguised as a 468 x 60 banner. This "banner" contains two 0-iframes, usersurf.com & fastmega.com. Additionally the fastmega.com iframe has on it two hidden 0-iframes embedded upon it.
code from eggso.com page:
<tr>
<td><iframe src="http://www.vastgate.com/vastgate.php?z=1&pl=2773&rl=120" width=468 height=60 marginwidth=0 marginheight=0 hspace=0 vspace=0 frameborder=0 scrolling="no"></iframe></td>
</tr>
Code from vastgate:
<iframe src="http://www.usersurf.com" width="0" height="0" border="0" frameborder="0" scrolling="no"></iframe>
<iframe src="http://www.fastmega.com" width="0" height="0" border="0" frameborder="0" scrolling="no"></iframe>
</BODY></HTML>