Stock Management Software

I have a need for a programmer to assist me with the build of a Web GUI based off of ASP.net using Microsoft Visual Studio and a database for the information used therin. this will consist of Aprox 40 hours of online colaboration and work both individually and together. On American time 8-8 central. the project consist of several excel formulas that must be emplimented into a webbased application with access to the database using MSQL. I will accept bids on the project and also by the hour. I will pay at the completion of each step of the project based on the hours worked. the project consist of 4 Phases: 1. database creation? 2. ASP.net application setup and formula? 3 GUI webbased rendition of the app 4 testing and debugging.