[StarBuG]

The color code for the adsense Ads is in the Google Code itself:

Go to your Adsense Setup and create the Banner you want, there you'll find all the options for changing the colors. Replace the current code with the newly generated code and you are good to go.

Ah, one more thing.
You use a leaderbord Banner inside the Navigation, that is not a good choice.

Put it below the navigation and inside the link unit like in my hack you seem to use.
Much better results.

To add a leaderboard banner below the navigation

In the navbar Template search for:

<!-- / PAGENAV POPUP -->
</if>

and add below:

<!-- 728x90 Leaderboard below navigation-->
<if condition="THIS_SCRIPT != 'index'">
<table class="tborder" align="center" border="0" cellpadding="6" cellspacing="1" width="100%">
<tbody>
 <!-- <tr>
  <td class="tcat" align="center"></td>
 </tr> -->
 <tr>
  <td class="alt1" colspan="2">
   <span class="smallfont">
   <center> 
YOUR ADSENSE LEADERBOARD CODE HERE
   </center>
   </span>
  </td>
 </tr>
</tbody>
</table><br />
</if>
<!-- 728x90 Leaderboard below navigation -->

StarBuG