Please try this and let me know
Download FlashFXP51_3853_Setup.exe
Download FlashFXP51_3853_Portable.exe
I am testing with a Dell Inspiron 14 model 5447 running Windows 8.1 (all updates), it's the closest thing I have for testing this issue, perhaps its not close enough, but this seems to solve the issues I first noticed..
Also keep in mind that when panning the direction you swipe is reverse of the direction you're moving; to scroll the list down you swipe up (this is a bit new to me, but the logic follows the OS behavior)