You didn't end any of your html links, you start <a href=blabla><img> then go on to make another if condition and more <a> But you never ended your first <a> tag.
HTML Code:
<if condition="is_member_of($bbuserinfo, 2, 6, 7, 9)">
<if condition="$post['field11']">
<a href="http://www.facebook.com/$post[field11]">
<img alt="My Facebook" border="0" src="http://gunclangaming.com/forums/images/misc/facebook.gif" border="0"/></a>
</if></if>
<if condition="is_member_of($bbuserinfo, 2, 6, 7, 9)">
<if condition="$post['field12']">
<a href="http://www.myspace.com/$post[field12]">
<img alt="Myspace" border="0" src="http://gunclangaming.com/forums/images/misc/myspace.gif" border="0"/></a>
</if></if>
<if condition="is_member_of($bbuserinfo, 2, 6, 7, 9)">
<if condition="$post['field13']">
<a href="http://www.playfire.com/$post[field13]">
<img alt="PlayFire" border="0" src="http://gunclangaming.com/forums/images/misc/playfire.png" border="0"/></a>
</if></if>
<if condition="is_member_of($bbuserinfo, 2, 6, 7, 9)">
<if condition="$post['field14']">
<a href="http://www.twitter.com/$post[field14]">
<img alt="Twitter" border="0" src="http://gunclangaming.com/forums/images/misc/twitter.png" border="0"/></a>
</if></if>