Hi:
Download the drivers to another PC and burn them to a CD drive. Install from the DVD drive.
You can use all of the W7 x64 drivers and software from this model on yours.
When you go to install the graphics drivers, install the Intel HD graphics driver first, reboot and then install the nVidia graphics driver.
DO NOT USE ANY BIOS OR FIRMWARE DOWNLOADS FROM THIS LINK
The driver for the wireless card hardware ID you posted is this one.