It says right on the page "doesn't work in wi-fi with motorola triumph, etc, use bluetooth instead" and I don't think my "ultraportable" Acer One 721 has bluetooth.
I had been trying to get EasyTether to work via USB (which I'm fine with, don't care if it's wi fi or USB as long as I can get online) and thought I'd dotted all my i's and crossed all my t's with the instructions but no go. I am still working on it though and have to transfer some drivers to the laptop I downloaded that it needs but may need some drivers for the Triumph too?
But I guess I'm in the same boat, I am not in a hurry to start playing with the Triumph factory software as I got a launch phone that has worked great since day one and would kick my own butt good if I gobbed it up. It's just not worth it to me.