Advertisment delete

I am trying to delete or hide better to say advertisment on Forumotion forum.
http://testforum-lolz.serbianforum.info/

When you use firebug to inspect you can find this:
html body .w74704f, html body .w74704f iframe, html body iframe[name="google_ads_frame"], html body .w74704f iframe[name="google_ads_frame"], html body #wrap #page-body div.w74704f, html body #page-body .w74704f {
bottom: inherit !important;
display: block !important;
float: none !important;
left: inherit !important;
margin: 0 auto !important;
opacity: 1 !important;
padding: inherit !important;
position: inherit !important;
right: inherit !important;
text-align: center !important;
top: inherit !important;
visibility: visible !important;
z-index: 9999 !important;
}
html body .w74704f, html body .w74704f iframe[name="google_ads_frame"] {
height: 90px !important;
min-height: 90px !important;
width: 728px !important;
}
html body .w74704f iframe {
border: 0 none !important;
}
html body iframe[name="google_ads_frame"] {
height: inherit !important;
min-height: inherit !important;
width: 100% !important;
}


When i type display:none; in every single code so I can hide it it doesent work. I dont know can there be any javascript for it.
Maybe this can help:
http://www.dodaj.rs/f/1d/i8/PIeBYes/2012-01-08165647.jpg

Is that consistent with the TOS?

Tos??????

could you set the iframes width to 0px?

<script>
$(document).ready(function() {
$("iframe").css("width", "0px");

});

</script>

Tos??????

Tems Of Service. Are you allowed to interfere with or suppress the display
of advertisements under the terms of your contract?

Can you also add height to 0?

This definitely sounds like something that's against the TOS of the service in question. Due to this I'm closing this thread. Please do not repost the question.