Hello,
Use this:
Code:
<if condition="is_member_of($post, 12)">
<a href="http://www.shottalk.com/forum/payments.php"><img border="0" src="http://www.shottalk.com/forum/images/badges/member02.gif" width="150" height="35">
<else />
<if condition="is_member_of($post, 13)">
<a href="http://www.shottalk.com/forum/payments.php"><img border="0" src="http://www.shottalk.com/forum/images/badges/sponsor.png" width="150" height="35"></if></if>
Hope that helps.