Problem installing Auto-Complete plugin in Emacs

[janoChen]

I downloaded Auto-Complete from here: 
http://github.com/m2ym/auto-complete/downloads
http://github.com/m2ym/auto-complete/downloads , I placed them in my
load-path (C:\...Application Data\.emacs.d\plugins\auto-complete-1.0), and
added the following to my .emacs:

;; load auto complete
(add-to-list 'load-path "~/.emacs.d/plugins/auto-complete-1.0")
(require 'auto-complete)
(global-auto-complete-mode t)

but a message shows up:

.emacs:53:1:Error: Cannot open load file: auto-complete
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