the one Proxy (crazy white hair) is the one depicted as breaking out of the lab in the opening scenes. That's the 'made one' as far as I can tell.

Episode 1. Starts with the White Proxy waking up and breaking out.
Second scene of episode 1. Alarm clock, breakfast, toothbrush. Who is waking up this time? It's the foreign engineer, Vincent... Coincidence?

Next scene, a person driving to work. Light turns red, bike loses control and crashes. From a top down view we see the driver, dressed in what looks like Vincent's uniform sprawled out. Narration begins: 'At that moment everything came back to me... all of my creator's evil plans...'

And from the end of Episode 2, it looks like Vincent has just been trying to be a normal guy, but he really is something much more. Also, the words written on his charm that Lil(Ril) finds at the end of the episode seem to be the quote from the opening. I couldn't get a good view of it though.

The 'second' Proxy is the one who assaults Lil in here home and begins crying while looking at her. One of the Auto-Raves said that Vincent probably harbors emotions towards her (Lil).

Speculate all you want, but from where I stand Vincent is definetely the second Proxy. How he came to exist however is a totally different story... It was mentioned he is a foreigner, so I see him as being made by a different group than those that made the White Proxy. Then again, that assumes that the Proxys are recent, and not ancient beings (which i feel they probably are)