More likely is that they didn't set it up correctly, as I'm sure you've seen tons of people have issues setting up and using the factory BMW software. I HAVE that cable from that link. I tuned my 325Ci with it.
If you want to find a cable that will absolutely have the FT232RL chipset (Which doesn't actually matter for what you're doing) search for a Galletto 1260 cable.
Last edited by smooth1; 02-24-2013 at 08:42 PM.