Website Data Entry Pages Upgrade

I have a custom PHP application that was written that needs a UI upgrade. Functionally the application works perfectly but it is not usable it needs a "Web 2.0" upgrade that will make it easier to use and navigate. The application consists of 2 parts a wizard that allows a new user to complete 3 tabs of data Part 1 1. Name 2. Location 3. Social Media The location tab also allows a user to add pictures and text that are like popup windows. The prompts on the site are controlled by a language file ideally. I will include a sample of the file if you are interested in reviewing it. Part 2 The second part of the website is the admin section that allows the user to edit the data they created but also allows system administrators to review all the data for all clients. What the site requires is an upgrade to the user interface that makes it easier to use and give the user the ability to jump around without any restriction on order of how they enter the data. Functionally the site is complete. The URL of the site is: [login to view URL]