line 150-153 is:
<td>
<?php if(!isset($nextend_fb_connect['fb_user_prefix'])) $nextend_fb_connect['fb_user_prefix'] = 'Facebook - '; ?>
<input type="text" name="fb_user_prefix" value="<?php echo $nextend_fb_connect['fb_user_prefix']; ?>" />
</td>
is this the correct code to be replaced?