The update is not a download from the website by the user …. you use the utility to update the TimeFactor or other Factor / H9.

I don't have a TimeFactor any more, but the way I used to update was using the Eventide Update Utility:-

http://www.eventide.com/AudioDivision/Support/Stompboxes/TimeFactor.aspx

 You may also use the H9 Control App to update it

http://www.eventide.com/AudioDivision/Support/Stompboxes/H9.aspx

if it were me, i would probably download H9 Control and install that and see if you can update it from that first.