Just as a tip for everyone. Iframe cheating ( 1 visitor to member site = 1 automated hit in by putting the vote button in an iframe ), can be avoided by enabling the gateway page, as it requires a click action.
For people not relying on the gateway ( iam myself one of these ), Iframe breaker scripts work wonders
Code:
<script type="text/javascript">
<!--
if (top.location != self.location) {
top.location = self.location.href;
}
//-->
</script>
This is just one of a few good ones out there. You can put that into your websites head to break out of any iframe.
Now a good javascripter should be able to make a anti iframe breaker, but lets be honest, the majority can't.
There is also the issue that the visitor on member site gets redirected to your website, which may annoy them. Keep that in mind