I need new functions getting coded for my file hosting script

Avg Bid (USD)
Project Budget (USD)
$30 - $250

Project Description:
I have a file hosting script with some basic functions and it needs some other functions included on it.

Multi-Server support

Anti-dupes system
no need to keep multiple copies of same file, our engine smartly detect dupes and use only one copy to save disk space

Site Statistics
Visually check how many files were uploaded/downloaded, how many users registered per day, how much bandwidth consumed, track payments

File folders for registered, premium user

Downloads tracking
Track distinct file or overall latest downloads with Referer/IP info in Admin Area

Coupon codes
For Promoting service using coupon codes for premium days

Affiliate system
Users receive funds from new registrations came from their affiliate and download links

users are able to track their daily downloads/profit statistics.

Flash upload
Choose multiple files with one selection.

Create reseller accounts with one click
Ajax download bar.
It needs to be shown the progressbar with how much kb/mb download how much time left. Now its shows only %

I have only premium and free user, i need :
I need to specify download, upload limit for registered users.

Best Regards

Skills required:
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