It won't work. Telus will only issue one 430 reg code per account. You cannot enter a 330 code into a 430.
If you do somehow manage to get 2 430 codes, then I'm not sure how things will work. I did get an order once with 2 430 codes, and I asked around to see if anyone knew what would happen. Some people thought that it wouldn't work, some people thought that the 430 would just act as a 330, and some thought that the 330s would only record/view one of the PVRs and the other one would work independently. As far as I know, nobody on the board has tried this, although I don't read every post. I think if you get that far, you'd be in uncharted territory.
If you do somehow manage to get 2 430 codes, then I'm not sure how things will work. I did get an order once with 2 430 codes, and I asked around to see if anyone knew what would happen. Some people thought that it wouldn't work, some people thought that the 430 would just act as a 330, and some thought that the 330s would only record/view one of the PVRs and the other one would work independently. As far as I know, nobody on the board has tried this, although I don't read every post. I think if you get that far, you'd be in uncharted territory.