Script Modification

I need some functionality added to a script that I own that is no longer supported by the creator. The script contains php, java script, css and html. The script is for an article directory, all of the functionality needs to be in the site admin area (my admin area), and some of the same functions need to be in the author’s admin area (client admin area). Listed below is a complete list of the work I need completed? Please include a time frame in which the work is to be completed if more than five days is needed. 1. I need the script to be re-branded for my company, ”Article Host,” for resell w/ the ability to change branding for customers that buy the script and wish that option. 2. I am currently limited to displaying only six ads total on the entire site. I want to be able to add different ads to each of the category pages as well as the subcategory pages and all static pages created. Example: Automobile Category page would have auto accessories ads and Sports Category page would have sports equipment ads. There are two places for ads in the layout and they should contain different ads on every page not just six ads. 3. I would like to change the footer. The part the reads, “powered by Article Directory,” and have it pointed to another site that I own w/ the ability to change, “powered by Article Directory,” for customers that wish that option as well. 4. I would like to make changing the colors of the themes for customers a simple click and choose process. Customers need to be able to change the color of the Header, Footer, Font, Titles, Headings and Backgrounds only. 5. I need the, “Change All,” button in the All Articles, Modified Articles, Articles in Review, Live and Problem Articles to change all or multiple articles and not just one at a time.