Missing drivers for Inspiron 17 (5748, Mid 2013) on dell page???Operating system: MS Windows 7 64-bit

Hi today i looking for drivers for my inspiron 5748 and i finde that the page dont have all drivers like before,, missing (Dell Wireless 1704 WiFi + Bluetooth,,Dell Wireless 1705 WiFi + Bluetooth Driver,, Driver nVidia GT840M/GT820M Graphics Driver etc) is some Dell moderator to update the page and fix this?? the page have a bug u cant download all drivers for ?? u can see on this page www.dell.com/.../drivers