I won't steal Joe Richard's thunder, check out this post by him...and no way I could ever steal Joe's thunder anyway (one of my favorite people in the AD world)
http://readlist.com/lists/mail.activedir.org/activedir/2/11901.html
He is using his adfind tool (highly recommended)
http://www.joeware.net/freetools/tools/adfind/index.htm
I tested and lockouttime>=1 did product an account that wasn't locked but when you pipe adfind into findstr and search for locked it produces the one account that is actually locked out in my lab.
Thanks
Mike