You can make all of your adjustment to the Ad script in the code that was copied and pasted to your static page you are using. Example below.
Text Formatted Code
<script type="text/javascript"><!--
google_ad_client = "********************";
google_ad_width = 468; <-- Reduce the Ad length, maybe why its pushing right side out
google_ad_height = 47; <--- Check here....play around
google_ad_format = "468x60_as";
google_ad_type = "text_image";
google_ad_channel = "";
google_color_border = "507AA1";
google_color_bg = "507AA1";
google_color_link = "FFFFFF";
google_color_text = "AECCEB";
google_color_url = "AECCEB";
//--></script>
<script type="text/javascript" src="http://pagead2.googlesyndication.com/pagead/show_ads.js">
</script>