Tweak a PHP based website and add couple of features

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

Project Description:
I am working on a PDF sharing site using 3rd part solution -
The website has all the details.

I am looking to make the following changes
1. Currently the script only has a single level of category for documents. I need to add two more levels of sub-categories and display that on the home page cleanly for easy navigation. The images of the files in the existing category listing needs to be removed.
2. The sizes of existing ad units should be tweaked to match popular Google adsense sizes.

Requires signing of non-disclosure and confidentiality agreements. Once selected the work must be complete in less than 2 weeks,

Skills required:
HTML, PHP, Website Design
About the employer:
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