Bulk Email Software - Modification Required

[login to view URL] is our site which sells bulk email software vodamail pro 9.60. we need modifications into this software to make it look professional in both functionality and looks. we are looking for project managers who work as freelancers who can undertake this project. 100% payment will be done only after all functionalities and graphics required are implemented. ie after getting the complete project. we donot want single programmers to undertake this project. we are looking for only project managers or companies to undertake this project.