i can point you to the drivers pack, just in case. also, as i said, i had the same issue and i freaked out because both the keyboard and the touchpad stopped working after first installer, and when i reconected it, the touchpad worked like the arrows, would move stuff leftand right but not the mouse.
after doing what i told you, and installed all 3 installers, now both the keyboard and touchpad are working, and i can dim or turn off the keyboard backligt and turn off and on the touchpad presing Fn Esc
edit: here youhave the threads with all the drivers