one way to change it would be to create a ID entry in the css then assign the ID to the <p>.
so the css entry you would add might be like:
Code:
#xAD a:link, #xAD a:visited {
color: #FFFF00;
}
#xAD a:active, #xAD a:hover{
color: #00FF00;
}
then you just add the ID to the html code:
HTML Code:
<p align="center" id="xAD">
<script type="text/javascript" src="http://x10hosting.com/adserve.js?advanced"></script>
</p>
change the colors or separate the classes to your taste.
(btw: you may want to move that up on the page a little)