this project is to screen the coder i chose to do long term work for me. my website is a member based financial consulting site that i want to build numerous financial models used through a web based information input system. The financial models  that i want incorporated into my PHP website hosted on a Windows server. the site that has the financial models is found here  http://www.exinfm.com/free_spreadsheets.html
I want a web based interface with software working in the background. there has to be a MYSQL database associated with all inputs. so for example, i select a financial model that will add two numbers.  a page prompts me to put in the first number, then a page prompts me to put in the second number, then a third page provides the answer. 
For the $500 or less I want the following excel files converted to PHP script with Java and Ajax:   FCFE Valuation 3 , Capital Budgeting Analysis , Capital Structure (xls) for the long term, I want to greatly modify these models so this will end up being a long term and regular financial modeling project. the coder will have to complete the project in PHP/script, Java, Ajax.