HTML Code:
<if condition="$bbuserinfo['usergroupid'] == 3">
<br />
<div align="left" style="color: red; background-color: white; border: 1px solid black; padding:2px">Your account is awaiting email confirmation. Please click the activation link in the email you were sent, or visit <a href="register.php?$session[sessionurl]do=requestemail">this page</a> to resend the activation email. If you did not receive the email then it's possible it was blocked by your email client. In this case you can either disable your blocker software or enter a new email address in <a href="profile.php?$session[sessionurl]do=editpassword">your profile</a>.</div>
</if>
Is what I use in the header...