Include 125x125 banner using text widgets -- http://www.wppicker.com/create-125x125-ad-space-site-sidebar-using-text-widgets/

include-125x125-ad.html

<div style="float:right;position:relative;left:-50%;text-align:center;">
	<div style="position:relative;left:50%;">

		<!--125x125 Ad Banner#1-->
		<a href="target link here" target=_blank>
		<img src="File URL of ad banner image here" alt="alt txt for ad 1" width="125" height="125" rel="nofollow" />
		</a>
		
		<!--125x125 Ad Banner#2-->
		<a href="target link here" target=_blank>
		<img src="File URL of ad banner image here" alt="alt txt for ad 1" width="125" height="125" rel="nofollow" />
		</a>
		
		<!--125x125 Ad Banner#3-->
		<a href="target link here" target=_blank>
		<img src="File URL of ad banner image here" alt="alt txt for ad 1" width="125" height="125" rel="nofollow" />
		</a>
		
		<!--125x125 Ad Banner#4-->
		<a href="target link here" target=_blank>
		<img src="File URL of ad banner image here" alt="alt txt for ad 1" width="125" height="125" rel="nofollow" />
		</a>
		
	</div>
</div>