PHP Landing Page/Contact & Response Forms

I want a php landing page - exactly like - [login to view URL] and the following features: - A design exactly like - [login to view URL] - the contact forms will be on the left just like - [login to view URL] - the contact forms will contain only two fields - visitor email address and visitor enquiry comments and then the send button - the text section will be on the right instead - the text section will contain side links to open new content at the right too - the right side will have an X sign which will close the right side just like - [login to view URL] - There will be full page background feature - the full page background will change on refresh just like - [login to view URL] - an admin section to add the multiple background pictures that will be changing at the frontend - ability to specify how many times each background image will display before it stops - the number of times each background image displays will be counted and shown to admin - when visitor submits forms content (email address and enquiry), will go to the backend - the backend will have similar design as frontend but only with side links - the details of the visitor submitted forms will go to the back and will indicate if a response has been provided or not - ability to respond to visitor comments from the backend which will automatically send an email back to the customer using the email provided - clicking on visitor email address will display or group all threads for visitor if applicable - admin will have ability to add multiple accounts to allow multiple customer service staff to login and respond to visitor enquiries - admin will be able to view all enquiries and responses by customer service staff; whilst customer service staff will be able to view only enquiries that are yet to be responded to - the system will count how many enquiries shown to admin; and how many responses made by each customer service staff; who will be able to view their own only - admin can click on customer service staff name and view all enquiries and responses provided - where one customer service staff is responding to an enquiry, then other customer service staff will not be able to respond to the same enquiry