[Orgmode] updating org-mode on Windows

[chick knick]

Hello,

I'm running Emacs 22.2.1 on WinXP.  I've downloaded and unzipped the latest Org files (6.06b), and have modified the load-path line in my .emacs file as follows -

(add-to-list 'load-path "c:/path/to/org-6.06b/lisp/")

This is at the top of my .emacs file so it should read this line first.  However, Emacs is still loading the old version (5.23a) of Org.  I've searched extensively on this, and it appears that this load-path line should do the trick, but it's not working.  Any thoughts?  Thanks in advance.