Usermaniac on "[Plugin: Contact Form 7] How can i add a progress bar in file upload on submit?"

Hello is there someone that could explain me how to achive a Progress bar for my Upload in Contact Form 7?

I tryd this. http://wordpress.org/support/topic/how-to-add-progress-bar-in-file-upload-on-submit-form?replies=8#post-4213042

But it dosn't work..

I would be happy if someone could help me.

Thanks.

http://wordpress.org/extend/plugins/contact-form-7/