yo Dr. Hurt and all parties responsible, i can't thank y'all enough man. i never really reply on threads, but i have no choice but to in this case. after days of searching for a alps driver for my e6520, this is the ONLY one that works. tapping, scrolling, keyboard, everything works. it just combines 3 and 4 finger gestures, it can't tell the difference. but none the less, I'm extremely appreciative.
Latitude e6520
2.49 GHz Intel Core i5
6 GB 1333 MHz DDR3
Intel HD Graphics 3000 384 MB