I need a file upload progress bar on a wordpress form.

I am using wordpress version 2.8.4.
I am also using a plugin called TDO Mini Forms:
http://wordpress.org/extend/plugins/tdo-mini-forms/

This plugin creates forms which are customisable (can modify the html).
It posts the form submission to the wordpress database for approval by a moderator.

One of the fields in the form is a file upload field.
The file size is up to 10mb so we need a file upload progress bar similar to the gmail one - very simple.

I don't mind how this is achieved either APC or Flash or some other method as long as I can take the code and add any of my forms in wordpress.
You may be able to use some of the instructions from here to get it working:
http://www.phpriot.com/articles/php-ajax-file-uploads/

Also I will need you to do the work on my development server so I can see it working in the correct environment. I don't mind if you code it locally but it needs to work on the development server which is running Linux, PHP, Mysql and the normal things for Wordpress.

Please factor in the cost of writing a short description on the steps to reproduce the work so I can add the progress bar to new forms.

Thanks.