time and expense sheet application

Hi, I need a piece of PHP / MySQL coding done that results in a timesheet application for companies. I'll give you a brief description. Bidders will get the full functional design if they can show a portfolio that proves they have the desired skills. More than one company will be in the database and each company can have more than one resource. These resouces should be able to: a) plan time on forehand b) book time and submit it for approval c) book expenses and submit for approval Furthermore a company should be able to invoice the time & expenses to their clients. Time & expenses can be written on clients/projects and other activities (time off/sick leave etc.) and these activities should be assignable. The time should be recorded in a grid (e.g. SlickGrid or other freeware Javascript grids). Timesheets, expense sheets & invoices should be exportable to PDF (please use a freeware PHP library). Reporting should allow overviews in gridview (same type of grid) and graph (please juse a freeware or cheap Javascript library) and reports should be easy to add by the site's adminstrator (i know PHP and MySQL). Adminstration should be possible on the company level (each company will have users with certain rights) allowing to define resources, clients/projects and other timewriting activities and assigning these to each other. Back end administration should allow the site's adminstrator to change & view company data, timesheet data etc. Obv all users should work under secure logins. There are various other feautures to this project. Please respond with portfolio and proof that you understand the above and I'll get you the details.