I can tell you were to put the ad-code.
If you open inc_top.asp and look for this code:
<!-- BEGIN Winvite.com BANNER CODE -->
<!--<br><a href="http://www.winvite.com/index.cfm?ref=reinhold@bigfoot.com"><img src="http://www.winvite.com/images/revision/ads/mb_button_1b.gif" width=234 height=30 alt="Answer 3 Survey Questions and Win $4,500!" border="0"></a>-->
<!-- END Winvite.com BANNER CODE -->
Remove the code and put in your own ad-code. (Yes, it allowed. No, this code doesn't do more than just act as a placeholder for ad-code).
Pierre