[jQuery] form plugin and a progress bar

[jQuery] form plugin and a progress bar


Hi :)
what I am trying to do is a file-upload form that uses ajax (and so
I'm using the form plugin) and that shows a progress bar while
uploading.
I've tried many solutions that I found over the internet but none
seemed to work.
possibly I am making mistakes somewhere in the process.
question is: is there a way to get the data I need? (i.e.: the
temporary file size)
the server is running php 5.1
could anyone please help me?
for example, see this:
http://t.wits.sg/misc/jQueryProgressBar/demo.php
the form seem to do what I need.
can this be used along with the form plugin?
maybe I'm asking a silly question, but I've tried so many times and I
don't really know what to do... :/
thank you in advance
andrea