it is old code before USCIS published the new code

don't worry, your code is correct.

this is the old code link

http://blog.wenxuecity.com/blogview.php?date=200708&postID=7960


the new code just published in the federal register on March 20th

http://a257.g.akamaitech.net/7/257/2422/01jan20081800/edocket.access.gpo.gov/2008/E8-5413.htm