Ajax PHP Penny Auction Script Modifications needed.

I have a Ajax PHP Penny Auction Script which needs some modifications.

The script is feature rich and relatively bug free and as far as I know stable. It is also hosted on a VPS server for as much performance as possible.

The main development needed is as follows:

1. Major Layout modifications, change the way auctions are displayed and shift some elements around like the log in, banners, slider ect. Integrate tweets this in auctions ect.

2. Build in a rewards store pretty much like they have at bidcactus.com

3. Upgrade the help section so it runs a little like: www.happybidday.com (just need a side menu and pulled in help articles on the same page.

3. Integrate a hot or not rating system for the upcoming auctions. I already have the files for this and they just need bolting in.

4. General modifications to make the script function better and in a more fluid format.

I have the full brief available should anyone require it.

Please only bid if you are familiar with the script, have worked on penny auctions before and are a serious web programmer/designer.

Many thanks. Matt.