No, the PT3 HUD only works with PT3.
The thing about the PT3 HUD is that it's much more flexible and can allow you to display a much wider array of stats easily and color code based on other stats instead of the one you're looking at. (So, for example, I have Attempt to Steal colored by someone's Fold to Steal percentage, if the blinds are both in magenta I know I can steal profitably with any two cards.) You can build stats to display things in words . . . really, the sky is the limit.
See the
How To: Advanced HUD Configuration for my full HUD details (and a walkthrough on how to build it in PT3).