You can just google for Jquery upload progress bars and you will get a lot. Implement one of them and share your code. Following are the tutorials you need

Elgg Tutorials :

1. http://docs.elgg.org/wiki/Tutorials/HelloWorld
2. http://docs.elgg.org/wiki/Engine/Views
3. http://docs.elgg.org/wiki/Javascript/Extending

Vendors

1. http://www.uploadify.com/
2. http://www.plupload.com
3. http://www.9lessons.info/2012/04/file-upload-progress-bar-with-jquery.html
4. and many others

but it needs some php extension like apc or perl to display so where can i get this to install in my server

A progressive uploader requires an asychronous model of handling the form submission, because uploads are sent in separate requests than the rest of the form content.

AFAIK none of the bundled plugin form handlers support this async model (today). So in the short term this would only be handy if you can create your own form handling logic.

FYI I've started a ticket to pursue this in a future Elgg version, but it's not going to be soon.

i agree, a missing part in Elgg, today with big files and huge storage members can not see any progress under for eg firefox