Change Classified Script

I need modifications done to my classifieds scripts located at www.buysellguns.com. Script is written in PHP and uses MYSQL database. 1. I want an option to switch the categories display to the left column from the site header. Admin allows display options for left and right columns. Subcategories under a main category will appear in the left column as well. Fonts will remain controlled in the admin section for display fonts. 2. I want an option added to limit number of classified ad renewals. 3. Users must be logged in to contact seller. Script now just goes to main page. I want this changed so that after login or register (if they are not) the user goes to the seller contact form for the ad. 4. I want to add a 'Buy Now' and a 'Make Offer' function for the ad display. Similar to the contact seller form. ## Deliverables 1) Complete and fully-functional working program(s) in executable form as well as complete source code of all work done. 2) Deliverables must be in ready-to-run condition, as follows? (depending on the nature? of the deliverables): a)? For web sites or? other server-side deliverables intended to only ever exist in one place in the Buyer's environment--Deliverables must be installed by the Seller in ready-to-run condition in the Buyer's environment. b) For all others including desktop software or software the buyer intends to distribute: A software? installation package that will install the software in ready-to-run condition on the platform(s) specified in this bid request. 3) All deliverables will be considered "work made for hire" under U.S. Copyright law. Buyer will receive exclusive and complete copyrights to all work purchased. (No GPL, GNU, 3rd party components, etc. unless all copyright ramifications are explained AND AGREED TO by the buyer on the site per the coder's Seller Legal Agreement). ## Platform Linux, PHP, MYSQL