Oscommerce expert needed

This are the tasks i need to be done, the oscommerce version is 2.3.3 1 Add a text field and one checkbox to a specific payment module (11 number required in field if spesific payment module is selected) and the numbers and if checkbox is checked it should show up in admin backend (somewere under order). 2 Modify module points/redemption ([login to view URL]): When costumers wants to use the points earned, the points should get substracted directly from the total amount instantly when ordering for costumer and order editor and in admin backend. the updated amount should also show up in [login to view URL] also show in admin order that points is used. Also see that points/redemtion module functions properly 3 Add dropdown menu under each category pictures (6 main categories in index) showing categories has subcategories to them when mouse over. Possebility that new subcategories shows up. 4 Install 2 modules: Product extra fields ([login to view URL]) + Advanced Ajax Search for Oscommerce with Extra Fields seach. (only showing in categories/subcategories not in index) ([login to view URL] [login to view URL])