Index: wp-admin/user-new.php
===================================================================
--- wp-admin/user-new.php	(revision 20336)
+++ wp-admin/user-new.php	(working copy)
@@ -255,7 +255,9 @@
 <?php
 if ( is_multisite() ) {
 	if ( $do_both )
-		echo '<h3 id="add-existing-user">' . __('Add Existing User') . '</h3>';
+		echo '<h3 id="add-existing-user">' . __('Add Existing User') . '</h3>'; ?>
+<p id="add-existing-user-text">
+<?php
 	if ( !is_super_admin() ) {
 		_e( 'Enter the email address of an existing user on this network to invite them to this site. That person will be sent an email asking them to confirm the invite.' );
 		$label = __('E-mail');
@@ -264,6 +266,7 @@
 		$label = __('E-mail or Username');
 	}
 ?>
+</p>
 <form action="" method="post" name="adduser" id="adduser" class="add:users: validate"<?php do_action('user_new_form_tag');?>>
 <input name="action" type="hidden" value="adduser" />
 <?php wp_nonce_field( 'add-user', '_wpnonce_add-user' ) ?>